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Cfengine Remotely Exploitable Buffer Overflow
Secunia Advisory: SA9855
Release Date: 2003-09-26
Popularity: 6,365 views

Critical:
Moderately critical
Impact: DoS
System access
Where: From local network
Solution Status: Vendor Patch

Software:Cfengine 2.x

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Description:
A vulnerability has been identified in Cfengine allowing malicious people to execute arbitrary code on the master server.

The problem is that it is possible to overflow the receive buffer by sending more than 4096 bytes to port 5308/tcp. This could be exploited to execute arbitrary code.

The vulnerability affects versions 2.x prior to version 2.0.8.

Solution:
Version 2.0.8 is not vulnerable.
http://www.cfengine.org/mirrors.html

Filter access at your perimeter and on the master server allowing only trusted IP adresses to connect.

Provided and/or discovered by:
Nick Cleaton


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