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Webmin "miniserv.pl" Perl Format String Vulnerability
Secunia Advisory: SA17749
Release Date: 2005-11-29
Last Update: 2005-12-22
Popularity: 13,808 views

Critical:
Highly critical
Impact: DoS
System access
Where: From remote
Solution Status: Vendor Patch

Software:Webmin 1.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Jack Louis has discovered a vulnerability in Webmin, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a vulnerable system.

The vulnerability is caused due to a format string error in the "miniserv.pl" script when logging failed authentication attempts. This can be exploited to consume a large amount of CPU and memory resources on a vulnerable system by attempting to login with a specially crafted username.

It has also been reported that the vulnerability can be exploited in conjunction with a vulnerability in Perl for arbitrary code execution. However, this has not been shown.

For more information:
SA17802

The vulnerability has been confirmed in version 1.240. Other versions may also be affected.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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