Vulnerability Description
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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Eclipse | Jetty | < 9.4.51 |
| Debian | Debian Linux | 10.0 |
| Netapp | Active Iq Unified Manager | - |
| Netapp | E-Series Santricity Os Controller | >= 11.0 |
| Netapp | E-Series Santricity Unified Manager | - |
| Netapp | E-Series Santricity Web Services | - |
Related Weaknesses (CWE)
References
- https://github.com/eclipse/jetty.project/pull/9339Patch
- https://github.com/eclipse/jetty.project/pull/9352Patch
- https://github.com/eclipse/jetty.project/security/advisories/GHSA-p26g-97m4-6q7cPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00039.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230526-0001/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5507Third Party Advisory
- https://www.rfc-editor.org/rfc/rfc2965Technical Description
- https://www.rfc-editor.org/rfc/rfc6265Technical Description
- https://github.com/eclipse/jetty.project/pull/9339Patch
- https://github.com/eclipse/jetty.project/pull/9352Patch
- https://github.com/eclipse/jetty.project/security/advisories/GHSA-p26g-97m4-6q7cPatchVendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00039.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20230526-0001/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5507Third Party Advisory
- https://www.rfc-editor.org/rfc/rfc2965Technical Description
FAQ
What is CVE-2023-26049?
CVE-2023-26049 is a vulnerability with a CVSS score of 2.4 (LOW). 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 tamp...
How severe is CVE-2023-26049?
CVE-2023-26049 has been rated LOW with a CVSS base score of 2.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-26049?
Check the references section above for vendor advisories and patch information. Affected products include: Eclipse Jetty, Debian Debian Linux, Netapp Active Iq Unified Manager, Netapp E-Series Santricity Os Controller, Netapp E-Series Santricity Unified Manager.