CVE-2023-41900: Weak Authentication
(updated )
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 is 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.
References
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