CVEvulnerability

CVE-2023-26049

5.3 MEDIUM Published 2023-04-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-04-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
2.4 LOW — CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-200

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.

Affected configurations

• eclipse jetty (< 9.4.51) • eclipse jetty (>= 10.0.0 < 10.0.14) • eclipse jetty (>= 11.0.0 < 11.0.14) • eclipse jetty 12.0.0 • debian debian linux 10.0 • debian debian linux 11.0 • debian debian linux 12.0 • 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

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References