vBulletin Forum Arbitrary File Deletion And Remote Code Execution Vulnerabilities

Published: 2017-12-18 13:03:37
CVE Author: NIST National Vulnerability Database (NVD)

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Summary:
This host is installed with vBulletin and is prone to arbitrary file deletion and remote code execution vulnerabilities.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
Multiple flaws exists due to, - Unsafe usage of PHP's unserialize function in vB_Library_Template's cacheTemplates function, which is a publicly exposed API. - A deserialization vulnerability.

Impact:
Successfully exploiting this issue allow remote attackers to execute arbitrary code execution and arbitrary file deletion on the affected system.

Affected Versions:
VBulletin versions through 5.3.4

Recommendations:
No known solution was made available for at least one year since the disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.

Solution Type:
Vendor will not fix

Detection Type:
Remote Banner

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-17672

References:

https://blogs.securiteam.com/index.php/archives/3569
https://blogs.securiteam.com/index.php/archives/3573

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Severity
High
CVSS Score
7.5

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