Parallels Plesk Panel phppath/php vulnerability

Overview

Parallels Plesk Panel versions 9.0 - 9.2.3 on Linux platforms are vulnerable to remote code execution.

Description

Parallels Plesk Panel versions 9.0 - 9.2.3 on Linux platforms may be exploited by a combination of CVE-2012-1823 and the Plesk phppath script alias usage. There have been reports that this vulnerability is being exploited in the wild.

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Impact

A remote unauthenticated attacker may be able to run arbitrary code under the context of the web server user.

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Solution

Apply an Update

Parallels Plesk Panel 9.0 - 9.2.3 have been considered end-of-life software for over 3 years. Users should upgrade to at least 9.5.4 or later. Parallels will provide additional workaround mitigations in Knowledge base article 116241 soon.

Please consider the following workarounds if you are unable to upgrade.

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Update PHP

Update PHP to protect against CVE-2012-1823.

Restrict Access

Do not allow untrusted networks to connect to the Plesk Panel.

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Vendor Information

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Parallels Holdings Ltd Affected

Notified: June 06, 2013 Updated: June 07, 2013

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

CVSS Metrics

Group	Score	Vector
Base	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
Temporal	6.5	E:H/RL:OF/RC:C
Environmental	4.9	CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

• <http://kb.parallels.com/116241&gt;
• <http://kb.parallels.com/en/113818&gt;
• <http://www.parallels.com/products/plesk/lifecycle&gt;
• <http://seclists.org/fulldisclosure/2013/Jun/21&gt;
• <http://blogs.cisco.com/security/plesk-0-day-targets-web-servers/&gt;
• <http://kb.parallels.com/en/113814&gt;
• <http://www.php.net/archive/2012.php#id2012-05-03-1&gt;
• <https://vulners.com/cve/CVE-2012-1823&gt;

Acknowledgements

Kingcope published an exploit for this vulnerability to the Full Disclosure mailing list.

This document was written by Jared Allar.

Other Information

CVE IDs:	CVE-2012-1823
Date Public:	2013-06-05 Date First Published: