Title: xinetd Connection Filtering Via Hostname Vulnerability
Severity: MODERATE
Description:
A vulnerability exists in versions of xinetd prior to versions 2.1.8.8p3 and 2.1.8.9pre6. If a hostname is specified to limit access to a service instead of an ip (for instance, specifying 'localhost' instead of 127.0.0.1), any host which attempts to connect to the service that does not have a reverse record will be able to connect, when they should actually be denied.
Affected Products:
- bbraun@synack.net xinetd 2.1.87
- bbraun@synack.net xinetd 2.1.88
- bbraun@synack.net xinetd 2.1.88p1
- bbraun@synack.net xinetd 2.1.88p2
- bbraun@synack.net xinetd 2.1.89pre1
- bbraun@synack.net xinetd 2.1.89pre2
- bbraun@synack.net xinetd 2.1.89pre3
- bbraun@synack.net xinetd 2.1.89pre4
- bbraun@synack.net xinetd 2.1.89pre5
References:
- bbraun@synack.net: xinetd
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