cve/2011/CVE-2011-5094.md

CVE-2011-5094

Description

Mozilla Network Security Services (NSS) 3.x, with certain settings of the SSL_ENABLE_RENEGOTIATION option, does not properly restrict client-initiated renegotiation within the SSL and TLS protocols, which might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection, a different vulnerability than CVE-2011-1473. NOTE: it can also be argued that it is the responsibility of server deployments, not a security library, to prevent or limit renegotiation when it is inappropriate within a specific environment

POC

Reference

• http://vincent.bernat.im/en/blog/2011-ssl-dos-mitigation.html
• http://www.ietf.org/mail-archive/web/tls/current/msg07553.html

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/Nissiuser/Vulnerability-Scan-Report
• https://github.com/aaronamran/Vulnerability-Scanning-Lab-with-OpenVAS-and-Metasploitable2
• https://github.com/chnzzh/OpenSSL-CVE-lib
• https://github.com/shashank181034/Task3ElevateLabs