WHMCS WHMCompleteSolution up to 5.0.3 functions.php code injection

Summaryinfo

A vulnerability categorized as critical has been discovered in WHMCS WHMCompleteSolution. Affected by this vulnerability is an unknown functionality of the file functions.php. The manipulation results in code injection. This vulnerability was named CVE-2011-5061. There is no available exploit.

Detailsinfo

A vulnerability was found in WHMCS WHMCompleteSolution. It has been classified as critical. Affected is an unknown functionality of the file functions.php. The manipulation with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

functions.php in WHMCompleteSolution (WHMCS) 4.0.x through 5.0.x allows remote attackers to trigger arbitrary code execution in the Smarty templating system by submitting a crafted ticket, related to improper handling of characters in the subject field.

The weakness was presented 01/13/2012 (Website). The advisory is shared for download at forum.whmcs.com. This vulnerability is traded as CVE-2011-5061 since 01/13/2012. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

By approaching the search of inurl:functions.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

See VDB-59929 for similar entry. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• WHMCS

Name

• WHMCompleteSolution

Version

• 4.0.0
• 4.0.1
• 4.0.2
• 4.1.0
• 4.1.1
• 4.1.2
• 4.2.0
• 4.2.1
• 4.3.0
• 4.3.1
• 4.4.0
• 4.4.1
• 4.4.2
• 4.5.0
• 4.5.1
• 4.5.2
• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3

CPE 2.3info

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CPE 2.2info

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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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