Cisco Bug: CSCvs53597 - CWMS Vulnerability
Jan 24, 2020
- Cisco Webex Meetings Server
Known Affected Releases
Symptom: This is a modification on the product to adopt new secure code best practices to enhance the security posture and resiliency of the Cisco Webex Meetings Server. Our Network Vulnerability scanner detected a new vulnerability for our WebEx server. Host is Vulnerable to Extended Master Secret TLS Extension (TLS triple handshake) port 443/tcp over SSL The Transport Layer Security (TLS) master secret is not cryptographically bound to important session parameters such as the server certificate. Consequently, it is possible for an active attacker to set up two sessions, one with a client and another with a server, such that the master secrets on the two sessions are the same. Conditions: Device running with default configuration.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases