SB2015112406 - Input validation error in vBulletin
Published: November 24, 2015 Updated: August 9, 2020
Security Bulletin ID
SB2015112406
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2015-7808)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Green
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The vB_Api_Hook::decodeArguments method in vBulletin 5 Connect 5.1.2 through 5.1.9 allows remote attackers to conduct PHP object injection attacks and execute arbitrary PHP code via a crafted serialized object in the arguments parameter to ajax/api/hook/decodeArguments.
Remediation
Install update from vendor's website.
References
- http://blog.checkpoint.com/2015/11/05/check-point-discovers-critical-vbulletin-0-day/
- http://packetstormsecurity.com/files/134331/vBulletin-5.1.2-Unserialize-Code-Execution.html
- http://pastie.org/pastes/10527766/text?key=wq1hgkcj4afb9ipqzllsq
- http://www.rapid7.com/db/modules/exploit/multi/http/vbulletin_unserialize
- https://blog.sucuri.net/2015/11/vbulletin-exploits-in-the-wild.html
- https://www.exploit-db.com/exploits/38629/