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Capi4Hylafax Shell Command Injection
Secunia Advisory: SA21726
Release Date: 2006-09-01
Popularity: 7,790 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Unpatched

Software:CAPI4Hylafax 1.x

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CVE reference:CVE-2006-3126


Description:
A vulnerability has been reported in Capi4Hylafax, which potentially can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to an error in c2faxrecv, which doesn't properly sanitise TSI strings when handling incoming calls. This can be exploited to execute shell commands with privileges of the user running c2faxrecv.

Solution:
Use another product.

Provided and/or discovered by:
Lionel Elie Mamane

Original Advisory:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=382474


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