In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), transfer-encoding chunks are handled poorly. The chunk length parsing was vulnerable to an integer overflow. Thus a large chunk size could be interpreted as a smaller chunk size and content sent as chunk body could be interpreted as a pipelined request. If Jetty was deployed behind an intermediary that imposed some authorization and that intermediary allowed arbitrarily large chunks to be passed on unchanged, then this flaw could be used to bypass the authorization imposed by the intermediary as the fake pipelined request would not be interpreted by the intermediary as a request.
Fix Resolution: The vendor has issued a fix (9.4.11.v20180605).
9.2.25.v20180606, 9.3.24.v20180605
The vendor advisory is available at:
http://dev.eclipse.org/mhonarc/lists/jetty-announce/msg00123.html
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CVE-2017-7657 - High Severity Vulnerability
Vulnerable Libraries - jetty-server-9.4.10.v20180503.jar, jetty-http-8.1.10.v20130312.jar, jetty-http-9.2.19.v20160908.jar, jetty-http-9.4.10.v20180503.jar
jetty-server-9.4.10.v20180503.jar
The core jetty server artifact.
path: /ddf/distribution/ddf/target/dependencies/solr/server/lib/jetty-server-9.4.10.v20180503.jar,/ddf/distribution/kernel/target/dependencies/solr/server/lib/jetty-server-9.4.10.v20180503.jar,/ddf/distribution/solr-distro/target/solr-7.4.0/server/lib/jetty-server-9.4.10.v20180503.jar,/root/.m2/repository/org/eclipse/jetty/jetty-server/9.4.10.v20180503/jetty-server-9.4.10.v20180503.jar
Library home page: http://www.eclipse.org/jetty
Dependency Hierarchy: - :x: **jetty-server-9.4.10.v20180503.jar** (Vulnerable Library)jetty-http-8.1.10.v20130312.jar
Administrative parent pom for Jetty modules
path: /root/.m2/repository/org/eclipse/jetty/jetty-http/8.1.10.v20130312/jetty-http-8.1.10.v20130312.jar
Dependency Hierarchy: - catalog-app-2.14.0-SNAPSHOT.xml (Root Library) - catalog-core-commands-2.14.0-SNAPSHOT.jar - catalog-core-standardframework-2.14.0-SNAPSHOT.jar - lux-1.2.jar - solr-core-4.10.4.jar - :x: **jetty-http-8.1.10.v20130312.jar** (Vulnerable Library)
jetty-http-9.2.19.v20160908.jar
Administrative parent pom for Jetty modules
path: /root/.m2/repository/org/eclipse/jetty/jetty-http/9.2.19.v20160908/jetty-http-9.2.19.v20160908.jar
Dependency Hierarchy: - jetty-servlets-9.2.19.v20160908.jar (Root Library) - :x: **jetty-http-9.2.19.v20160908.jar** (Vulnerable Library)
jetty-http-9.4.10.v20180503.jar
The Eclipse Jetty Project
path: /root/.m2/repository/org/eclipse/jetty/jetty-http/9.4.10.v20180503/jetty-http-9.4.10.v20180503.jar,/ddf/distribution/solr-distro/target/solr-7.4.0/server/lib/jetty-http-9.4.10.v20180503.jar,/ddf/distribution/kernel/target/dependencies/solr/server/lib/jetty-http-9.4.10.v20180503.jar,/ddf/distribution/ddf/target/dependencies/solr/server/lib/jetty-http-9.4.10.v20180503.jar
Library home page: http://www.eclipse.org/jetty
Dependency Hierarchy: - :x: **jetty-http-9.4.10.v20180503.jar** (Vulnerable Library)Vulnerability Details
In Eclipse Jetty, versions 9.2.x and older, 9.3.x (all configurations), and 9.4.x (non-default configuration with RFC2616 compliance enabled), transfer-encoding chunks are handled poorly. The chunk length parsing was vulnerable to an integer overflow. Thus a large chunk size could be interpreted as a smaller chunk size and content sent as chunk body could be interpreted as a pipelined request. If Jetty was deployed behind an intermediary that imposed some authorization and that intermediary allowed arbitrarily large chunks to be passed on unchanged, then this flaw could be used to bypass the authorization imposed by the intermediary as the fake pipelined request would not be interpreted by the intermediary as a request.
Publish Date: 2018-06-26
URL: CVE-2017-7657
CVSS 3 Score Details (9.8)
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: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: http://www.securitytracker.com/id/1041194
Fix Resolution: The vendor has issued a fix (9.4.11.v20180605). 9.2.25.v20180606, 9.3.24.v20180605 The vendor advisory is available at: http://dev.eclipse.org/mhonarc/lists/jetty-announce/msg00123.html
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