Jetty Weak Auth Bypass via nested LoginService 9.4.219.4.51/10.0.15/11.0.15
CVE-2023-41900 Published on September 15, 2023
Jetty's OpenId Revoked authentication allows one request
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.
Vulnerability Analysis
CVE-2023-41900 is exploitable with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Products Associated with CVE-2023-41900
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Affected Versions
eclipse jetty.project:- Version >= 9.4.21, <= 9.4.51 is affected.
- Version >= 10.0.0, <= 10.0.15 is affected.
- Version >= 11.0.0, <= 11.0.15 is affected.
Vulnerable Packages
The following package name and versions may be associated with CVE-2023-41900
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| maven | org.eclipse.jetty:jetty-openid | >= 9.4.21, <= 9.4.51 | 9.4.52 |
| maven | org.eclipse.jetty:jetty-openid | >= 10.0.0, <= 10.0.15 | 10.0.16 |
| maven | org.eclipse.jetty:jetty-openid | >= 11.0.0, <= 11.0.15 | 11.0.16 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.