RedHat 5.0 msgchk Vulnerability

BID:383

Info

RedHat 5.0 msgchk Vulnerability

Bugtraq ID: 383
Class: Boundary Condition Error
CVE:
Remote: No
Local: Yes
Published: Jan 19 1998 12:00AM
Updated: Jan 19 1998 12:00AM
Credit: Problem first reported to BugTraq by Cesar Tascon Alvarez <[email protected]> on January 19, 1998. Exploit first posted to BugTraq by Jorge Hurtado Rojo <[email protected]> on May 12, 1998.
Vulnerable: Redhat Linux 5.0
Not Vulnerable: Redhat Linux 6.0
Redhat Linux 5.2 i386
Redhat Linux 5.1
- Standard & Poors ComStock 4.2.4

Discussion

RedHat 5.0 msgchk Vulnerability

Similar to the mh vulnerability, a buffer overflow exists in the version of msgchk shipped with RedHat Linux 5.0. The vulnerability allows a user to execute arbritrary commands as root to compromise superuser access.

Exploit / POC

RedHat 5.0 msgchk Vulnerability

x

Solution / Fix

RedHat 5.0 msgchk Vulnerability

Solution:
Remove the setuid bit from msgchk [and the rest of the MH suite] and upgrade to a newer version of RedHat Linux.

References

RedHat 5.0 msgchk Vulnerability

References:

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