Title: SLRN Arbitrary Shell Script Execution Vulnerability
Severity: HIGH
Description:
slrn is a freely available NTTP reader by Thomas Schultz. It is maintained and developed by the slrn project.
A problem has been discovered in the program that could allow the execution of arbitrary commands on systems using the vulnerable reader. This could lead to a remote user gaining unauthorized access.
The problem is in the shell script handling code of slrn. When slrn downloads posts to an NNTP server it attempts to decode binaries automatically. In this process, slrn will attempt to execute any shell scripts contained in the post.
This could lead to arbitrary commands being executed on the local system. These commands would be executed with the privileges of the slrn user.
This is currently known to affect only Debian Linux.
Affected Products:
- Debian Linux 2.2.0
- Debian Linux 2.2.0 68k
- Debian Linux 2.2.0 alpha
- Debian Linux 2.2.0 arm
- Debian Linux 2.2.0 powerpc
- Debian Linux 2.2.0 sparc
- RedHat Linux 6.2.0 alpha
- RedHat Linux 6.2.0 i386
- RedHat Linux 6.2.0 sparc
- SLRN Development Team slrn 0.9.6.2
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