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Opera Command Line URL Shell Command Injection
Secunia Advisory: SA16907
Release Date: 2005-11-22
Last Update: 2005-12-02
Popularity: 33,908 views

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

Software:Opera 7.x
Opera 8.x

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CVE reference:CVE-2005-3750


Description:
Secunia Research has discovered a vulnerability in Opera, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to the shell script used to launch Opera parsing shell commands that are enclosed within backticks in the URL provided via the command line. This can e.g. be exploited to execute arbitrary shell commands by tricking a user into following a malicious link in an external application which uses Opera as the default browser (e.g. the mail client Evolution on Red Hat Enterprise Linux 4).

This vulnerability can only be exploited on Unix / Linux based environments.

This vulnerability is a variant of:
SA16869

The vulnerability has been confirmed in version 8.5 on Red Hat Enterprise Linux 4. Other versions and platforms may also be affected.

Solution:
Update to version 8.51.
http://www.opera.com/download/

Provided and/or discovered by:
Originally discovered by:
Peter Zelezny

Discovered in Opera by:
Jakob Balle, Secunia Research

Changelog:
2005-11-23: Added link to vendor advisory.
2005-12-02: Added CVE reference.

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2005-57/

Opera Software:
http://www.opera.com/support/search/supsearch.dml?index=818


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