CVE-2011-10018

Summary

myBB version 1.6.4 was distributed with an unauthorized backdoor embedded in the source code. The backdoor allowed remote attackers to execute arbitrary PHP code by injecting payloads into a specially crafted collapsed cookie. This vulnerability was introduced during packaging and was not part of the intended application logic. Exploitation requires no authentication and results in full compromise of the web server under the context of the web application.

Affected Software

Weaknesses

• CWE-912: CWE-912 Hidden Functionality
• CWE-94: CWE-94 Improper Control of Generation of Code ('Code Injection')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: total

Additional References

• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/mybb_backdoor.rb
• https://www.exploit-db.com/exploits/17949

References

• https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/mybb_backdoor.rb
• https://www.exploit-db.com/exploits/17949
• https://web.archive.org/web/20111015224948/http://secunia.com/advisories/46300/
• https://blog.mybb.com/2011/10/06/1-6-4-security-vulnerabilit/
• https://www.vulncheck.com/advisories/mybb-backdoor-arbitrary-command-execution

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