Title: HP-UX RExec Remote Username Flag Local Buffer Overrun Vulnerability
Severity: HIGH
Description:
HP-UX is the Unix operating system variant maintained and distributed by HP.
It has been reported that a problem in the rexec program included with some
versions of HP-UX may be vulnerable to a boundary condition error. It may be possible for a local user to exploit this vulnerability to gain elevated privileges on the system.
The rexec program does not properly check bounds in the remote username flag (-l). This results in a stack overrun that may be exploited by a malicious local user to execute arbitrary instructions. As the rexec program is typically a setuid program, exploitation could result in compromise of the administrative account on a vulnerable system.
This problem has been reported in version 10.20 of HP-UX, but may also affect other versions.
Affected Products:
- HP HP-UX 10.10.0
- HP HP-UX 10.16.0
- HP HP-UX 10.20.0
- HP HP-UX 10.24.0
- HP HP-UX 10.26.0
- HP HP-UX 10.30.0
- HP HP-UX 10.34.0
- HP HP-UX 11.0.0
- HP HP-UX 11.0.0 4
- HP HP-UX 11.11.0
- HP HP-UX 11.20.0
- HP HP-UX 11.22.0
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