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[SA13363] rssh Security Bypass Arbitrary Command Execution Vulnerability

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Fri Dec 03 2004 - 08:34:35 CST


TITLE:
rssh Security Bypass Arbitrary Command Execution Vulnerability

SECUNIA ADVISORY ID:
SA13363

VERIFY ADVISORY:
http://secunia.com/advisories/13363/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
Local system

SOFTWARE:
rssh 2.x
http://secunia.com/product/3604/

DESCRIPTION:
Jason Wies has reported a vulnerability in rssh, which can be
exploited to bypass certain security restrictions.

The problem is that some of the predefined applications support
flags, which allows command execution. This can be exploited to
bypass the shell restriction and execute arbitrary commands.

The following applications are reportedly affected:
* rdist -P [command]
* rsync -e [command]
* scp -S [command]

The vulnerability has been reported in version 2.2.2. Other versions
may also be affected.

SOLUTION:
Grant only trusted users access to vulnerable systems.

PROVIDED AND/OR DISCOVERED BY:
Jason Wies

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