Cisco Expressway Series and Cisco TelePresence VCS Cross-Site Request Forgery Vulnerability

A vulnerability in the REST API of Cisco Expressway Series and Cisco TelePresence VCS could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected system. An attacker could exploit this vulnerability by persuading a user of the REST API to follow a crafted link. A successful exploit could allow the attacker to cause the affected system to reload. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. 

Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.2 allow remote attackers to cause a denial of service (device reload) via a high rate of crafted packets, aka Bug ID CSCui06507.

The SIP IX implementation in Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.1.1 allows remote attackers to cause a denial of service (device reload) via crafted SDP packets, aka Bug ID CSCuo42252.

Cisco TelePresence Video Communication Server (VCS) and Expressway Software before X8.1.1 allow remote attackers to cause a denial of service (device reload) via crafted SIP packets, aka Bug IDs CSCum60442 and CSCum60447.

The Session Description Protocol (SDP) implementation in Cisco TelePresence Video Communication Server (VCS) and Cisco Expressway before X8.2 and Cisco TelePresence Conductor before XC2.4 allows remote attackers to cause a denial of service (mishandled exception and device reload) via a crafted media description, aka Bug IDs CSCus96593 and CSCun73192.

The management interface in Cisco TelePresence Video Communication Server (VCS) and Cisco Expressway before X7.2.4, X8 before X8.1.2, and X8.2 before X8.2.2 and Cisco TelePresence Conductor before X2.3.1 and XC2.4 before XC2.4.1 allows remote attackers to bypass authentication via crafted login parameters, aka Bug IDs CSCur02680 and CSCur05556.

Cisco TelePresence Video Communication Server (VCS) X8.5RC4 allows remote attackers to cause a denial of service (CPU consumption or device outage) via a crafted SDP parameter-negotiation request in an SDP session during a SIP connection, aka Bug ID CSCut42422.

Cisco TelePresence Video Communication Server (VCS) X8.5.2 allows remote authenticated users to execute arbitrary commands in the context of the nobody user account via an unspecified web-page parameter, aka Bug ID CSCuv12333.

The System Snapshot feature in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.1 allows remote authenticated users to obtain sensitive password-hash information by reading the snapshot file, aka Bug ID CSCuv40422.

The Call Policy Configuration page in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.3 improperly validates external DTDs, which allows remote authenticated users to read arbitrary files or cause a denial of service via a crafted XML document, aka Bug ID CSCuv31853.

The Mobile and Remote Access (MRA) endpoint-validation feature in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 improperly validates the phone line used for registration, which allows remote authenticated users to conduct impersonation attacks via a crafted registration, aka Bug ID CSCuv40396.

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 allows remote attackers to cause a denial of service via invalid variables in an authentication packet, aka Bug ID CSCuv40469.

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 allows remote attackers to cause a denial of service via invalid variables in a GET request, aka Bug ID CSCuv40528.

The password-change feature in the administrative web interface in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.1 improperly performs authorization, which allows remote authenticated users to reset arbitrary active-user passwords via unspecified vectors, aka Bug ID CSCuv12338.

The Configuration Log File component in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 allows remote authenticated users to obtain sensitive information by reading a log file, aka Bug ID CSCuv12340.

The CLI in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 allows local users to obtain root privileges by writing script arguments to an unspecified file, aka Bug ID CSCuv12542.

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 improperly checks for a user account's read-only attribute, which allows remote authenticated users to execute arbitrary OS commands via crafted HTTP requests, as demonstrated by read or write operations on the Unified Communications lookup page, aka Bug ID CSCuv12552.

The administrator web interface in Cisco TelePresence Video Communication Server (VCS) X8.5.2 allows remote authenticated users to execute arbitrary OS commands via crafted HTTP requests, aka Bug ID CSCuv11796.

A local file script in Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 allows local users to gain privileges for OS command execution via invalid parameters, aka Bug ID CSCuv10556.

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 allows remote authenticated users to bypass intended access restrictions and read configuration files by leveraging the Mobile and Remote Access (MRA) role and establishing a TFTP session, aka Bug ID CSCuv78531.