Auth bypass in Eclipse Jetty
CVE-2023-41900
Jetty is a Java based web server and servlet engine. Versions 9.4.21 through 9.4.51, 10.0.15, and 11.0.15 are vulnerable to weak authentication. If a Jetty `OpenIdAuthenticator` uses the optional nested `LoginService`, and that `LoginService` decides to revoke an already authenticated user, then the current request will still treat the user as authenticated. The authentication is then cleared from the session and subsequent requests will not be treated as authenticated. So a request on a previously authenticated session could be allowed to bypass authentication after it had been rejected by the `LoginService`. This impacts usages of the jetty-openid which have configured a nested `LoginService` and where that `LoginService` will is capable of rejecting previously authenticated users. Versions 9.4.52, 10.0.16, and 11.0.16 have a patch for this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.009 (60.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 60.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Eclipse Jetty
- Eclipse Jetty.project — versions >= 9.4.21, <= 9.4.51, >= 10.0.0, <= 10.0.15, >= 11.0.0, <= 11.0.15
- Debian Linux — versions 11.0, 12.0
Weakness classification (CWE)
References
- github.com/eclipse/jetty.project/security/advisories/GHSA-pwh8-58vv-vw48 (Exploit, Patch, Vendor Advisory)
- github.com/eclipse/jetty.project/pull/9528 (Patch)
- github.com/eclipse/jetty.project/pull/9660 (Patch)
- www.debian.org/security/2023/dsa-5507 (Third Party Advisory)
- security.netapp.com/advisory/ntap-20231110-0004/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-41900?
- CVE-2023-41900 is a low-severity vulnerability in Eclipse Jetty, classified under Weak Authentication. CVSS score: 3.5/10. Published 2023-09-15.
- How severe is CVE-2023-41900?
- Low severity. CVSS v3 base score is 3.5 out of 10.