CVE-2023-26049

NameCVE-2023-26049
DescriptionJetty 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3592-1, DSA-5507-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
jetty9 (PTS)bullseye (security), bullseye9.4.50-4+deb11u2fixed
bookworm, bookworm (security)9.4.50-4+deb12u3fixed
trixie, sid9.4.54-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
jetty9sourceexperimental9.4.51-1
jetty9sourcebuster9.4.16-0+deb10u3DLA-3592-1
jetty9sourcebullseye9.4.39-3+deb11u2DSA-5507-1
jetty9sourcebookworm9.4.50-4+deb12u1DSA-5507-1
jetty9source(unstable)9.4.52-1

Notes

https://github.com/eclipse/jetty.project/security/advisories/GHSA-p26g-97m4-6q7c
https://github.com/eclipse/jetty.project/pull/9339
https://github.com/eclipse/jetty.project/pull/9352

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