Description
Multiple format string vulnerabilities in the phar extension in PHP 5.3 before 5.3.2 allow context-dependent attackers to obtain sensitive information (memory contents) and possibly execute arbitrary code via a crafted phar:// URI that is not properly handled by the (1) phar_stream_flush, (2) phar_wrapper_unlink, (3) phar_parse_url, or (4) phar_wrapper_open_url functions in ext/phar/stream.c; and the (5) phar_wrapper_open_dir function in ext/phar/dirstream.c, which triggers errors in the php_stream_wrapper_log_error function.
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.
Exploit-DB 1
- PHP 5.3.x < 5.3.2 - 'ext/phar/stream.c' / 'ext/phar/dirstream.c' Multiple Format String Vulnerabilities EDB-33988 · remote · May 14, 2010 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://php-security.org/2010/05/14/mops-2010-028-php-phar_wrapper_open_url-format-string-vulnerabilities/index.html
- http://php-security.org/2010/05/14/mops-2010-024-php-phar_stream_flush-format-string-vulnerability/index.html
- ADV-2011-0068 vdb-entry
- http://php-security.org/2010/05/14/mops-2010-027-php-phar_parse_url-format-string-vulnerabilities/index.html
- http://php-security.org/2010/05/14/mops-2010-025-php-phar_wrapper_open_dir-format-string-vulnerability/index.html
- SUSE-SR:2010:017 vendor-advisory
- MDVSA-2011:004 vendor-advisory
- SUSE-SR:2010:018 vendor-advisory
- http://php-security.org/2010/05/14/mops-2010-026-php-phar_wrapper_unlink-format-string-vulnerability/index.html