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Bomgar Remote Support Portal deserializes untrusted data

Vulnerability Note VU#978652

Original Release Date: 2015-05-05 | Last Revised: 2015-05-05

Overview

Bomgar Remote Support version 14.3.1 and possibly earlier versions deserialize untrusted data without sufficient validation, allowing an attacker to potentially execute arbitrary PHP code.

Description

CWE-502: Deserialization of Untrusted Data

Bomgar Remote Support version 14.3.1 and possibly earlier versions deserialize untrusted data without sufficient validation. An unauthenticated attacker can inject arbitrary input to at least one vulnerable PHP file, and authenticated attackers can inject arbitrary input to multiple vulnerable PHP files. When malicious data is deserialized, arbitrary PHP code may be executed in the context of the PHP server process.

Impact

A remote, unauthenticated attacker may be able to execute arbitrary PHP code in the context of the Bomgar Remote Support portal application.

Solution

Apply an Update

Bomgar advises system administrators to update their Bomgar Remote Support appliances to the latest version of Bomgar 15.1.1 or apply a patch that is available for download.

Additionally, please consider the following workaround:

Restrict network access

Restrict access to Bomgar Support Portal to trusted hosts and networks until upgrading or applying the patch.

Vendor Information

978652
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Bomgar

Notified:  February 13, 2015 Updated:  May 05, 2015

Status

  Affected

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

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

Addendum

There are no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P
Temporal 5.3 E:POC/RL:OF/RC:C
Environmental 1.3 CDP:ND/TD:L/CR:ND/IR:ND/AR:ND

References

Credit

Thanks to Markus Wulftange for reporting this vulnerability.

This document was written by Todd Lewellen.

Other Information

CVE IDs: CVE-2015-0935
Date Public: 2015-05-05
Date First Published: 2015-05-05
Date Last Updated: 2015-05-05 17:44 UTC
Document Revision: 35

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