Jetty is a java based web server and servlet engine. Nonstandard cookie parsing in Jetty may allow an attacker to smuggle cookies within other cookies, or otherwise perform unintended behavior by tampering with the cookie parsing mechanism. If Jetty sees a cookie VALUE that starts with `"` (double quote), it will continue to read the cookie string until it sees a closing quote -- even if a semicolon is encountered. So, a cookie header such as: `DISPLAY_LANGUAGE="b; JSESSIONID=1337; c=d"` will be parsed as one cookie, with the name DISPLAY_LANGUAGE and a value of b; JSESSIONID=1337; c=d instead of 3 separate cookies. This has security implications because if, say, JSESSIONID is an HttpOnly cookie, and the DISPLAY_LANGUAGE cookie value is rendered on the page, an attacker can smuggle the JSESSIONID cookie into the DISPLAY_LANGUAGE cookie and thereby exfiltrate it. This is significant when an intermediary is enacting some policy based on cookies, so a smuggled cookie can bypass that policy yet still be seen by the Jetty server or its logging system. This issue has been addressed in versions 9.4.51, 10.0.14, 11.0.14, and 12.0.0.beta0 and users are advised to upgrade. There are no known workarounds for this issue.
CVE-2023-26049 - Medium Severity Vulnerability
jetty-server-9.4.36.v20210114.jar
The core jetty server artifact.
Library home page: https://eclipse.org/jetty
Path to dependency file: /webgoat-lessons/xxe/pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/org/eclipse/jetty/jetty-server/9.4.36.v20210114/jetty-server-9.4.36.v20210114.jar
Dependency Hierarchy: - wiremock-2.27.2.jar (Root Library) - :x: **jetty-server-9.4.36.v20210114.jar** (Vulnerable Library)
jetty-http-9.4.36.v20210114.jar
Library home page: https://eclipse.org/jetty
Path to dependency file: /webgoat-lessons/xxe/pom.xml
Path to vulnerable library: /home/wss-scanner/.m2/repository/org/eclipse/jetty/jetty-http/9.4.36.v20210114/jetty-http-9.4.36.v20210114.jar
Dependency Hierarchy: - wiremock-2.27.2.jar (Root Library) - jetty-server-9.4.36.v20210114.jar - :x: **jetty-http-9.4.36.v20210114.jar** (Vulnerable Library)
Found in HEAD commit: f18e43fbc2d56c28b38b6d440d202f7327efd240
Found in base branch: develop
Jetty is a java based web server and servlet engine. Nonstandard cookie parsing in Jetty may allow an attacker to smuggle cookies within other cookies, or otherwise perform unintended behavior by tampering with the cookie parsing mechanism. If Jetty sees a cookie VALUE that starts with `"` (double quote), it will continue to read the cookie string until it sees a closing quote -- even if a semicolon is encountered. So, a cookie header such as: `DISPLAY_LANGUAGE="b; JSESSIONID=1337; c=d"` will be parsed as one cookie, with the name DISPLAY_LANGUAGE and a value of b; JSESSIONID=1337; c=d instead of 3 separate cookies. This has security implications because if, say, JSESSIONID is an HttpOnly cookie, and the DISPLAY_LANGUAGE cookie value is rendered on the page, an attacker can smuggle the JSESSIONID cookie into the DISPLAY_LANGUAGE cookie and thereby exfiltrate it. This is significant when an intermediary is enacting some policy based on cookies, so a smuggled cookie can bypass that policy yet still be seen by the Jetty server or its logging system. This issue has been addressed in versions 9.4.51, 10.0.14, 11.0.14, and 12.0.0.beta0 and users are advised to upgrade. There are no known workarounds for this issue.
Publish Date: 2023-04-18
URL: CVE-2023-26049
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: None - Availability Impact: None
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/advisories/GHSA-p26g-97m4-6q7c
Release Date: 2023-04-18
Fix Resolution: org.eclipse.jetty:jetty-http:9.4.51.v20230217,10.0.14,11.0.14, org.eclipse.jetty:jetty-runner:9.4.51.v20230217,10.0.14,11.0.14, org.eclipse.jetty:jetty-server:9.4.51.v20230217,10.0.14,11.0.14