Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
HttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.7.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2019-20444
### Vulnerable Libraries - netty-codec-http-4.1.13.Final.jar, netty-3.10.6.Final.jar
### netty-codec-http-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
The Netty project is an effort to provide an asynchronous event-driven
network application framework and tools for rapid development of
maintainable high performance and high scalability protocol servers and
clients. In other words, Netty is a NIO client server framework which
enables quick and easy development of network applications such as protocol
servers and clients. It greatly simplifies and streamlines network
programming such as TCP and UDP socket server.
HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.7.0
Fix Resolution (io.netty:netty): 4.1.44.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 5.6.5
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2020-7238
### Vulnerable Library - netty-codec-http-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869.
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.7.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2020-11612
### Vulnerable Library - netty-codec-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.8.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2019-16869
### Vulnerable Library - netty-codec-http-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.5.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2021-43797
### Vulnerable Library - netty-codec-http-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
Mend Note: After conducting further research, Mend has determined that all versions of netty up to version 4.1.71.Final are vulnerable to CVE-2021-43797.
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.17.11
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2021-21295
### Vulnerable Library - netty-codec-http-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by `Http2MultiplexHandler` as it is propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (`HttpRequest`, `HttpContent`, etc.) via `Http2StreamFrameToHttpObjectCodec `and then sent up to the child channel's pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy case, users may assume the content-length is validated somehow, which is not the case. If the request is forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of this is true: `HTTP2MultiplexCodec` or `Http2FrameCodec` is used, `Http2StreamFrameToHttpObjectCodec` is used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by implementing a custom `ChannelInboundHandler` that is put in the `ChannelPipeline` behind `Http2StreamFrameToHttpObjectCodec`.
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.15.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
WS-2020-0408
### Vulnerable Library - netty-handler-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
An issue was found in all versions of io.netty:netty-all. Host verification in Netty is disabled by default. This can lead to MITM attack in which an attacker can forge valid SSL/TLS certificates for a different hostname in order to intercept traffic that doesn’t intend for him. This is an issue because the certificate is not matched with the host.
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.17.11
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2021-21290
### Vulnerable Libraries - netty-codec-http-4.1.13.Final.jar, netty-handler-4.1.13.Final.jar
### netty-codec-http-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
Netty is an asynchronous event-driven network application framework for
rapid development of maintainable high performance protocol servers and
clients.
Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a vulnerability on Unix-like systems involving an insecure temp file. When netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method "File.createTempFile" on unix-like systems creates a random file, but, by default will create this file with the permissions "-rw-r--r--". Thus, if sensitive information is written to this file, other local users can read this information. This is the case in netty's "AbstractDiskHttpData" is vulnerable. This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own "java.io.tmpdir" when you start the JVM or use "DefaultHttpDataFactory.setBaseDir(...)" to set the directory to something that is only readable by the current user.
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.13.Final/netty-codec-http-4.1.13.Final.jar
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2019-20445
### Vulnerable Library - netty-codec-http-4.1.13.Final.jarNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.13.Final/netty-codec-http-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-codec-http-4.1.13.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability Analysis This vulnerability is potentially reachable ``` com.visualpathit.account.utils.ElasticsearchUtil (Application) -> org.elasticsearch.transport.client.PreBuiltTransportClient (Extension) -> org.elasticsearch.transport.Netty4Plugin (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport$HttpChannelHandler (Extension) -> io.netty.handler.codec.http.HttpRequestDecoder (Extension) -> ❌ io.netty.handler.codec.http.HttpObjectDecoder (Vulnerable Component) ``` ### Vulnerability DetailsHttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.
Publish Date: 2020-01-29
URL: CVE-2019-20445
### CVSS 3 Score Details (9.1)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20445
Release Date: 2020-01-29
Fix Resolution (io.netty:netty-codec-http): 4.1.44.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.7.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2019-20444
### Vulnerable Libraries - netty-codec-http-4.1.13.Final.jar, netty-3.10.6.Final.jar### netty-codec-http-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.13.Final/netty-codec-http-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-codec-http-4.1.13.Final.jar** (Vulnerable Library) ### netty-3.10.6.Final.jar
The Netty project is an effort to provide an asynchronous event-driven network application framework and tools for rapid development of maintainable high performance and high scalability protocol servers and clients. In other words, Netty is a NIO client server framework which enables quick and easy development of network applications such as protocol servers and clients. It greatly simplifies and streamlines network programming such as TCP and UDP socket server.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty/3.10.6.Final/netty-3.10.6.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty3-client-5.6.4.jar - :x: **netty-3.10.6.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability Analysis This vulnerability is potentially reachable ``` com.visualpathit.account.utils.ElasticsearchUtil (Application) -> org.elasticsearch.transport.client.PreBuiltTransportClient (Extension) -> org.elasticsearch.transport.Netty4Plugin (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport$HttpChannelHandler (Extension) -> io.netty.handler.codec.http.HttpRequestDecoder (Extension) -> ❌ io.netty.handler.codec.http.HttpObjectDecoder (Vulnerable Component) ``` ### Vulnerability DetailsHttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."
Publish Date: 2020-01-29
URL: CVE-2019-20444
### CVSS 3 Score Details (9.1)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20444
Release Date: 2020-01-29
Fix Resolution (io.netty:netty-codec-http): 4.1.44.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.7.0
Fix Resolution (io.netty:netty): 4.1.44.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 5.6.5
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2020-7238
### Vulnerable Library - netty-codec-http-4.1.13.Final.jarNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.13.Final/netty-codec-http-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-codec-http-4.1.13.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability Analysis This vulnerability is potentially reachable ``` com.visualpathit.account.utils.ElasticsearchUtil (Application) -> org.elasticsearch.transport.client.PreBuiltTransportClient (Extension) -> org.elasticsearch.transport.Netty4Plugin (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport$HttpChannelHandler (Extension) -> io.netty.handler.codec.http.HttpRequestDecoder (Extension) -> ❌ io.netty.handler.codec.http.HttpObjectDecoder (Vulnerable Component) ``` ### Vulnerability DetailsNetty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869.
Publish Date: 2020-01-27
URL: CVE-2020-7238
### CVSS 3 Score Details (7.5)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Release Date: 2020-01-27
Fix Resolution (io.netty:netty-codec-http): 4.1.44.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.7.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2020-11612
### Vulnerable Library - netty-codec-4.1.13.Final.jarNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec/4.1.13.Final/netty-codec-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-codec-4.1.13.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability Analysis This vulnerability is potentially reachable ``` com.visualpathit.account.utils.ElasticsearchUtil (Application) -> org.elasticsearch.transport.client.PreBuiltTransportClient (Extension) -> org.elasticsearch.transport.Netty4Plugin (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport (Extension) ... -> io.netty.handler.codec.http.HttpContentCompressor (Extension) -> io.netty.handler.codec.compression.ZlibCodecFactory (Extension) -> ❌ io.netty.handler.codec.compression.JZlibDecoder (Vulnerable Component) ``` ### Vulnerability DetailsThe ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.
Publish Date: 2020-04-07
URL: CVE-2020-11612
### CVSS 3 Score Details (7.5)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://netty.io/news/2020/02/28/4-1-46-Final.html
Release Date: 2020-04-07
Fix Resolution (io.netty:netty-codec): 4.1.46.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.8.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2019-16869
### Vulnerable Library - netty-codec-http-4.1.13.Final.jarNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.13.Final/netty-codec-http-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-codec-http-4.1.13.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability Analysis This vulnerability is potentially reachable ``` com.visualpathit.account.utils.ElasticsearchUtil (Application) -> org.elasticsearch.transport.client.PreBuiltTransportClient (Extension) -> org.elasticsearch.transport.Netty4Plugin (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport$HttpChannelHandler (Extension) -> io.netty.handler.codec.http.HttpRequestDecoder (Extension) -> ❌ io.netty.handler.codec.http.HttpObjectDecoder (Vulnerable Component) ``` ### Vulnerability DetailsNetty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.
Publish Date: 2019-09-26
URL: CVE-2019-16869
### CVSS 3 Score Details (7.5)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16869
Release Date: 2019-09-26
Fix Resolution (io.netty:netty-codec-http): 4.1.42.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.5.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2021-43797
### Vulnerable Library - netty-codec-http-4.1.13.Final.jarNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.13.Final/netty-codec-http-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-codec-http-4.1.13.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability Analysis This vulnerability is potentially reachable ``` com.visualpathit.account.utils.ElasticsearchUtil (Application) -> org.elasticsearch.transport.client.PreBuiltTransportClient (Extension) -> org.elasticsearch.transport.Netty4Plugin (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport (Extension) -> org.elasticsearch.http.netty4.cors.Netty4CorsConfig (Extension) -> ❌ io.netty.handler.codec.http.DefaultHttpHeaders (Vulnerable Component) ``` ### Vulnerability DetailsNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final. Mend Note: After conducting further research, Mend has determined that all versions of netty up to version 4.1.71.Final are vulnerable to CVE-2021-43797.
Publish Date: 2021-12-09
URL: CVE-2021-43797
### CVSS 3 Score Details (6.5)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: CVE-2021-43797
Release Date: 2021-12-09
Fix Resolution (io.netty:netty-codec-http): 4.1.71.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.17.11
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2021-21295
### Vulnerable Library - netty-codec-http-4.1.13.Final.jarNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.13.Final/netty-codec-http-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-codec-http-4.1.13.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability Analysis This vulnerability is potentially reachable ``` com.visualpathit.account.utils.ElasticsearchUtil (Application) -> org.elasticsearch.transport.client.PreBuiltTransportClient (Extension) -> org.elasticsearch.transport.Netty4Plugin (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport (Extension) -> org.elasticsearch.http.netty4.Netty4HttpServerTransport$HttpChannelHandler (Extension) -> io.netty.handler.codec.http.HttpRequestDecoder (Extension) -> ❌ io.netty.handler.codec.http.HttpObjectDecoder (Vulnerable Component) ``` ### Vulnerability DetailsNetty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by `Http2MultiplexHandler` as it is propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (`HttpRequest`, `HttpContent`, etc.) via `Http2StreamFrameToHttpObjectCodec `and then sent up to the child channel's pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy case, users may assume the content-length is validated somehow, which is not the case. If the request is forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of this is true: `HTTP2MultiplexCodec` or `Http2FrameCodec` is used, `Http2StreamFrameToHttpObjectCodec` is used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by implementing a custom `ChannelInboundHandler` that is put in the `ChannelPipeline` behind `Http2StreamFrameToHttpObjectCodec`.
Publish Date: 2021-03-09
URL: CVE-2021-21295
### CVSS 3 Score Details (5.9)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://github.com/advisories/GHSA-wm47-8v5p-wjpj
Release Date: 2021-03-09
Fix Resolution (io.netty:netty-codec-http): 4.1.60.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.15.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
WS-2020-0408
### Vulnerable Library - netty-handler-4.1.13.Final.jarNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-handler/4.1.13.Final/netty-handler-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-handler-4.1.13.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability AnalysisThe vulnerable code is unreachable
### Vulnerability DetailsAn issue was found in all versions of io.netty:netty-all. Host verification in Netty is disabled by default. This can lead to MITM attack in which an attacker can forge valid SSL/TLS certificates for a different hostname in order to intercept traffic that doesn’t intend for him. This is an issue because the certificate is not matched with the host.
Publish Date: 2020-06-22
URL: WS-2020-0408
### CVSS 3 Score Details (7.4)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/WS-2020-0408
Release Date: 2020-06-22
Fix Resolution (io.netty:netty-handler): 4.1.69.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.17.11
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.
CVE-2021-21290
### Vulnerable Libraries - netty-codec-http-4.1.13.Final.jar, netty-handler-4.1.13.Final.jar### netty-codec-http-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.13.Final/netty-codec-http-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-codec-http-4.1.13.Final.jar** (Vulnerable Library) ### netty-handler-4.1.13.Final.jar
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.
Library home page: http://netty.io/
Path to dependency file: /pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-handler/4.1.13.Final/netty-handler-4.1.13.Final.jar
Dependency Hierarchy: - transport-5.6.4.jar (Root Library) - transport-netty4-client-5.6.4.jar - :x: **netty-handler-4.1.13.Final.jar** (Vulnerable Library)
Found in HEAD commit: 15d4a5374096c3ec1a1b4e003d3db96dd0b60fd2
Found in base branch: vp-rem
### Reachability AnalysisThe vulnerable code is unreachable
### Vulnerability DetailsNetty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a vulnerability on Unix-like systems involving an insecure temp file. When netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method "File.createTempFile" on unix-like systems creates a random file, but, by default will create this file with the permissions "-rw-r--r--". Thus, if sensitive information is written to this file, other local users can read this information. This is the case in netty's "AbstractDiskHttpData" is vulnerable. This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own "java.io.tmpdir" when you start the JVM or use "DefaultHttpDataFactory.setBaseDir(...)" to set the directory to something that is only readable by the current user.
Publish Date: 2021-02-08
URL: CVE-2021-21290
### CVSS 3 Score Details (6.2)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://github.com/netty/netty/security/advisories/GHSA-5mcr-gq6c-3hq2
Release Date: 2021-02-08
Fix Resolution (io.netty:netty-codec-http): 4.1.59.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.15.0
Fix Resolution (io.netty:netty-handler): 4.1.59.Final
Direct dependency fix Resolution (org.elasticsearch.client:transport): 7.15.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.:rescue_worker_helmet:Automatic Remediation will be attempted for this issue.