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TITLE:
MyBB Compromised Source Packages Backdoor Security Issue

SECUNIA ADVISORY ID:
SA46300

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46300/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46300

RELEASE DATE:
2011-10-18

DISCUSS ADVISORY:
http://secunia.com/advisories/46300/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/46300/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=46300

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in MyBB, which can be exploited by
malicious people to compromise a vulnerable system.

The security issue is caused due to the distribution of compromised
MyBB source code packages containing a backdoor, which can be
exploited to e.g. execute arbitrary PHP code.

The compromised source file was distributed with versions 1.6.4 on
October 6th, 2011 and prior.

SOLUTION:
Manually download and install the latest version.

PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.

ORIGINAL ADVISORY:
MyBB:
http://blog.mybb.com/2011/10/06/1-6-4-security-vulnerabilit/
http://blog.mybb.com/wp-content/uploads/2011/10/mybb_1604_patches.txt

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
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Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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