Trend Micro Security

Lighttpd mod_fastcgi Extension CGI Variable Overwriting Vulnerability

2011年2月10日
  危険度: : 高
  CVE識別番号: CVE-2007-4727

  概要

 Buffer overflow in the fcgi_env_add function in mod_proxy_backend_fastcgi.c in the mod_fastcgi extension in lighttpd before 1.4.18 allows remote attackers to overwrite arbitrary CGI variables and execute arbitrary code via an HTTP request with a long content length, as demonstrated by overwriting the SCRIPT_FILENAME variable, aka a "header overflow."

  トレンドマイクロの対策

Trend Micro Deep Security shields networks through Deep Packet Inspection (DPI) rules. Trend Micro customers using OfficeScan with Intrusion Defense Firewall (IDF) plugin are also protected from attacks using these vulnerabilities. Please refer to the filter number and filter name when applying appropriate DPI and/or IDF rules.

  対応方法

  Trend Micro Deep Security DPI Rule Number: 1002566
  Trend Micro Deep Security DPI Rule Name: 1002566 - Lighttpd mod_fastcgi Extension CGI Variable Overwriting Vulnerability

  影響を受けるソフトウェア

  • lighttpd lighttpd 1.4.15