Vulnerability Assessment & Network Security Forums
If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Checks the presence of a RPC service
Detailed Explanation for this Vulnerability Assessment
The cachefsd RPC service is running on this port.
Multiple vulnerabilities exist in this service. At least
one heap overflow vulnerability can be exploited remotely
to obtain root rights by sending a long directory and
cache name request to the service. A buffer overflow can
result in root rights from local users exploiting the
fscache_setup function with a long mount argument.
Solaris 2.5.1, 2.6, 7 and 8 are vulnerable to this
issue. Sun patch 110896-02 is available for Solaris 8.
Other operating systems might be affected as well.
*** Nessus did not check for this vulnerability,
*** so this might be a false positive
Solution : Deactivate this service - there is no patch at this time
for pre-8 systems
Edit /etc/inetd.conf and disable the 100235/rcp service:
#100235/1 tli rpc/tcp wait root /usr/lib/fs/cachefsd cachefsd
Then kill -HUP the inetd process id.
These activities may need to be repeated after every
Network Security Threat Level: High
Networks Security ID: 4631
Vulnerability Assessment Copyright: This script is Copyright (C) 2002 Renaud Deraison
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