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vBulletin - Remote Code Execution (CVE-2023-25135)

Severity
CVSSv3 Score
9.8
Vulnerability description

vBulletin is vulnerable to CVE-2023-25135, a Remote Code Execution in the verify_serialized method. The root cause of this vulnerability is improper sanitization of user-provided input. This vulnerability allows an unauthenticated remote attacker to inject commands via POST requests through the data field.

Risk description

The risk exists that a remote unauthenticated attacker can fully compromise the server in order to steal confidential information, install ransomware, or pivot to the internal network.

Exploit capabilities

Sniper can gain unauthenticated Remote Code Execution on the target system and extract multiple artefacts as evidence.

Recommendation

Update the vBulletin server to one of the currently fixed versions: 5.6.7 PL1, 5.6.8 PL1, and 5.6.9 PL1.

Codename
Not available
Detectable with
Network Scanner
Exploitable with Sniper
Yes
Vuln date
Feb 2023
Published at
Updated at
Software Type
Forum package
Vendor
Internet Brands
Product
vBulletin