Description
Simple Web Server 2.2 rc2 contains a stack-based buffer overflow vulnerability in its handling of the Connection HTTP header. When a remote attacker sends an overly long string in this header, the server uses vsprintf() without proper bounds checking, leading to a buffer overflow on the stack. This flaw allows remote attackers to execute arbitrary code with the privileges of the web server process. The vulnerability is triggered before authentication.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
PMSoftware Simple Web Server
Default version status: unknown
2.2 rc2affected
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/sws_connection_bof.rb ↗
- https://www.exploit-db.com/exploits/19937 ↗
- https://www.exploit-db.com/exploits/20028 ↗
- http://ghostinthelab.wordpress.com/2012/07/19/simplewebserver-2-2-rc2-remote-buffer-overflow-exploit/ ↗
- http://www.pmx.it/software/sws.asp ↗
- https://www.vulncheck.com/advisories/simple-web-server-connection-header-buffer-overflow ↗