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YaBB Execution of Arbitrary Code
Secunia Advisory: SA8762
Release Date: 2003-05-12
Last Update: 2003-05-13
Popularity: 6,711 views

Critical:
Not critical
Impact: System access
Where: From remote
Solution Status: Vendor Workaround

Software:YaBB SE 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:
A vulnerability has been identified in YaBB SE allowing malicious people to execute arbitrary PHP code on the web server.

The problem is that the "sourcedir" variable in "SSI.php" isn't verfied before it is used in an "include_once" function call. This allows malicious users to supply a path to a remote web server with malicious versions of "Errors.php", "Subs.php" and "Load.php".

Further testing of this vulnerability shows that it can only be reproduced if YaBB SE has not been installed correctly ie. wrong path information or too restrictive file permissions. This is therefore not a vulnerability but a matter of misconfiguration.

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



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