Simple Web Server Connection Header Buffer Overflow
63Vexday Risk Score
Patch soon. It has a working public exploit.
ssvc Attendcvss 9.3epss 1.2%
from disclosure to weapon0 days
Published on NVDAug 8
metasploitJan 22
exploitation probability
1.2%top 35% of all CVEs
observed exploitation
nono source reports it
4 public exploit(s)
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
PMSoftware · Simple Web Serverpublic PoCs found — 4
cve_referenceghostinthelab.wordpress.com/2012/07/19/simplewebserver-2-2-rc2-remote-buffer-overflow-exploit/unverifiedcve_referenceraw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/sws_connection_bof.rbunverifiedcve_referencewww.exploit-db.com/exploits/19937unverifiedcve_referencewww.exploit-db.com/exploits/20028unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://ghostinthelab.wordpress.com/2012/07/19/simplewebserver-2-2-rc2-remote-buffer-overflow-exploit/https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/sws_connection_bof.rbhttps://www.exploit-db.com/exploits/19937https://www.exploit-db.com/exploits/20028https://www.vulncheck.com/advisories/simple-web-server-connection-header-buffer-overflowhttp://www.pmx.it/software/sws.asp