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WU-FTPD S/KEY Authentication Buffer Overflow Vulnerability
Secunia Advisory: SA10077
Release Date: 2003-10-28
Last Update: 2004-03-09
Popularity: 9,916 views

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

Software:WU-FTPD 2.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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

Description:
A vulnerability has been reported in WU-FTPD, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.

The vulnerability is caused due to a boundary error in the S/KEY challenge handling. This can be exploited by supplying overly long, specially crafted user credentials, which causes a buffer overflow and may allow execution of arbitrary code.

Successful exploitation requires that S/KEY authentication has been enabled.

The vulnerability was originally reported in version 2.6.0 in June 2000, but has now also been reported to affect the latest version (2.6.2).

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



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