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CVE-2021-21295 (Medium) detected in netty-codec-http2-4.1.49.Final.jar, netty-codec-http-4.1.49.Final.jar #17

Open mend-for-github-com[bot] opened 3 years ago

mend-for-github-com[bot] commented 3 years ago

CVE-2021-21295 - Medium Severity Vulnerability

Vulnerable Libraries - netty-codec-http2-4.1.49.Final.jar, netty-codec-http-4.1.49.Final.jar

netty-codec-http2-4.1.49.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: https://netty.io/

Path to dependency file: /quarkus/deployment/pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http2/4.1.49.Final/netty-codec-http2-4.1.49.Final.jar,/home/wss-scanner/.m2/repository/io/netty/netty-codec-http2/4.1.49.Final/netty-codec-http2-4.1.49.Final.jar,/home/wss-scanner/.m2/repository/io/netty/netty-codec-http2/4.1.49.Final/netty-codec-http2-4.1.49.Final.jar

Dependency Hierarchy: - quarkus-vertx-http-1.12.2.Final.jar (Root Library) - quarkus-vertx-core-1.12.2.Final.jar - vertx-core-3.9.5.jar - :x: **netty-codec-http2-4.1.49.Final.jar** (Vulnerable Library)

netty-codec-http-4.1.49.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: https://netty.io/

Path to dependency file: /quarkus/runtime/pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.49.Final/netty-codec-http-4.1.49.Final.jar,/home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.49.Final/netty-codec-http-4.1.49.Final.jar,/home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.49.Final/netty-codec-http-4.1.49.Final.jar

Dependency Hierarchy: - quarkus-vertx-http-1.12.2.Final.jar (Root Library) - quarkus-vertx-core-1.12.2.Final.jar - vertx-core-3.9.5.jar - :x: **netty-codec-http-4.1.49.Final.jar** (Vulnerable Library)

Found in HEAD commit: 34eee947640ca637662cb41e649c6acf8b6d8c2e

Found in base branch: master

Vulnerability Details

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`.

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 Fix

Type: Upgrade version

Origin: https://github.com/advisories/GHSA-wm47-8v5p-wjpj

Release Date: 2021-03-09

Fix Resolution (io.netty:netty-codec-http2): 4.1.60.Final

Direct dependency fix Resolution (io.quarkus:quarkus-vertx-http): 2.0.0.Final

Fix Resolution (io.netty:netty-codec-http): 4.1.60.Final

Direct dependency fix Resolution (io.quarkus:quarkus-vertx-http): 2.0.0.Final

:rescue_worker_helmet: Automatic Remediation is available for this issue

mend-for-github-com[bot] commented 3 years ago

:heavy_check_mark: This issue was automatically closed by WhiteSource because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the WhiteSource inventory.

mend-for-github-com[bot] commented 3 years ago

:heavy_check_mark: This issue was automatically closed by WhiteSource because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the WhiteSource inventory.

mend-for-github-com[bot] commented 2 years ago

:information_source: This issue was automatically re-opened by WhiteSource because the vulnerable library in the specific branch(es) has been detected in the WhiteSource inventory.