Cisco: >> Meeting Server >> 2.0 Security Vulnerabilities
A vulnerability in the Real-Time Transport Protocol (RTP) bitstream processing of the Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient input validation of incoming RTP bitstreams. An attacker could exploit this vulnerability by sending a crafted RTP bitstream to an affected Cisco Meeting Server. A successful exploit could allow the attacker to deny audio and video services by causing media process crashes resulting in a DoS condition on the affected product. This vulnerability affects Cisco Meeting Server deployments that are running Cisco Meeting Server Software Releases 2.0, 2.1, 2.2, and 2.3. Cisco Bug IDs: CSCve79693, CSCvf91393, CSCvg64656, CSCvh30725, CSCvi86363.
CVSS Score
7.5
EPSS Score
0.009
Published
2018-05-17
A vulnerability in Cisco Meeting Server could allow an unauthenticated, remote attacker to gain unauthorized access to components of, or sensitive information in, an affected system, leading to Remote Code Execution. The vulnerability is due to incorrect default configuration of the device, which can expose internal interfaces and ports on the external interface of the system. A successful exploit could allow the attacker to gain unauthenticated access to configuration and database files as well as sensitive meeting information on an affected system. Additionally, if the Traversal Using Relay NAT (TURN) service is enabled and utilizing Transport Layer Security (TLS) connections, an attacker could utilize TURN credentials to forward traffic to device daemons, allowing for remote exploitation. This vulnerability affects Cisco Meeting Server (CMS) Acano X-series platforms that are running a CMS Software release prior to 2.2.11. Cisco Bug IDs: CSCvg76469.
CVSS Score
8.1
EPSS Score
0.052
Published
2018-05-02
A vulnerability in the H.264 decoder function of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a Cisco Meeting Server media process to restart unexpectedly when it receives an illegal H.264 frame. The vulnerability is triggered by an H.264 frame that has an invalid picture parameter set (PPS) value. An attacker could exploit this vulnerability by sending a malformed H.264 frame to the targeted device. An exploit could allow the attacker to cause a denial of service (DoS) condition because the media process could restart. The media session should be re-established within a few seconds, during which there could be a brief interruption in service. Cisco Bug IDs: CSCvg12559.
CVSS Score
5.8
EPSS Score
0.008
Published
2017-11-16