Is CVE-2023-41900 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 1%.

What products does CVE-2023-41900 affect?

Tracked products affected include Eclipse Jetty. Check the version you run to see whether it is affected.

How do I fix CVE-2023-41900?

Apply the vendor fix in your normal patch cycle. An official patch or advisory is available. Upgrade affected products to a fixed version.

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CVE-2023-41900

Q: What is CVE-2023-41900?

CVE-2023-41900 is a low-severity software vulnerability (CWE-1390) with a CVSS score of 3.5. 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 `LoginServic

LOW severity · CVSS 3.5 · CWE-1390

3.5CVSS LOW

Summary

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.

Impact & exploitability

Attack vectorNetwork

Attack complexityHigh

Privileges requiredLow

User interactionNone

Confidentiality impactLow

Integrity impactNone

Availability impactNone

Exploit probability (EPSS)1%

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

Affected products we track (1)

Eclipse Jetty

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://github.com/eclipse/jetty.project/pull/9528 ↗

CVE-2023-41900

Summary

Impact & exploitability

Affected products we track (1)

Recommendation

Additional information