Description
prefs.php in phpBB 1.4.0 and earlier allows remote authenticated users to execute arbitrary PHP code via an invalid language value, which prevents the variables (1) $l_statsblock in prefs.php or (2) $l_privnotify in auth.php from being properly initialized, which can be modified by the user and later used in an eval statement.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- phpBB 1.x - Page Header Arbitrary Command Execution EDB-21065 · webapps · Jul 31, 2001 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20010804 Re: phpBB 1.4.0 bug leads to easy admin privileges mailing-list
- 20010810 Easily and Remotely Pipe a Covert Shell on phpBB version 1.4.0 and below mailing-list
- phpbb-admin-access(6944) vdb-entry
- VU#920931 third-party-advisory
- 3167 vdb-entry