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TITLE:
ZNC webadmin Configuration File Manipulation Vulnerability

SECUNIA ADVISORY ID:
SA34043

VERIFY ADVISORY:
http://secunia.com/advisories/34043/

DESCRIPTION:
A vulnerability has been reported in ZNC, which can be exploited by
malicious users to bypass certain security restrictions and
compromise a vulnerable system.

Input passed to the webadmin module is not properly sanitised before
being used to modify the "znc.conf" configuration file. This can be
exploited to add arbitrary values to the configuration file via
newline characters included in e.g. the "QuitMessage" field.

Successful exploitation allows execution of arbitrary commands by
accessing the shell module after gaining administrator access.

The vulnerability is reported in versions prior to 0.066.

SOLUTION:
Update to version 0.066.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits cnu.

ORIGINAL ADVISORY:
http://en.znc.in/wiki/ChangeLog/0.066

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