CVE-2017-12249
https://notcve.org/view.php?id=CVE-2017-12249
A vulnerability in the Traversal Using Relay NAT (TURN) server included with Cisco Meeting Server (CMS) could allow an authenticated, remote attacker to gain unauthenticated or unauthorized access to components of or sensitive information in an affected system. The vulnerability is due to an incorrect default configuration of the TURN server, which could expose internal interfaces and ports on the external interface of an affected system. An attacker could exploit this vulnerability by using a TURN server to perform an unauthorized connection to a Call Bridge, a Web Bridge, or a database cluster in an affected system, depending on the deployment model and CMS services in use. A successful exploit could allow the attacker to gain unauthenticated access to a Call Bridge or database cluster in an affected system or gain unauthorized access to sensitive meeting information in an affected system. To exploit this vulnerability, the attacker must have valid credentials for the TURN server of the affected system. • http://www.securityfocus.com/bid/100821 http://www.securitytracker.com/id/1039357 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170913-cmsturn • CWE-16: Configuration CWE-668: Exposure of Resource to Wrong Sphere •
CVE-2017-6794
https://notcve.org/view.php?id=CVE-2017-6794
A vulnerability in the CLI command-parsing code of Cisco Meeting Server could allow an authenticated, local attacker to perform command injection and escalate their privileges to root. The attacker must first authenticate to the application with valid administrator credentials. The vulnerability is due to insufficient validation of user-supplied input at the CLI for certain commands. An attacker could exploit this vulnerability by authenticating to the affected application and submitting a crafted CLI command for execution at the Cisco Meeting Server CLI. An exploit could allow the attacker to perform command injection and escalate their privilege level to root. • http://www.securityfocus.com/bid/100464 http://www.securitytracker.com/id/1039245 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170823-cms • CWE-20: Improper Input Validation CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') •
CVE-2017-12224
https://notcve.org/view.php?id=CVE-2017-12224
A vulnerability in the ability for guest users to join meetings via a hyperlink with Cisco Meeting Server could allow an authenticated, remote attacker to enter a meeting with a hyperlink URL, even though access should be denied. The vulnerability is due to the incorrect implementation of the configuration setting Guest access via hyperlinks, which should allow the administrative user to prevent guest users from using hyperlinks to connect to meetings. An attacker could exploit this vulnerability by using a crafted hyperlink to connect to a meeting. An exploit could allow the attacker to connect directly to the meeting with a hyperlink, even though access should be denied. The attacker would still require a valid hyperlink and encoded secret identifier to be connected. • http://www.securityfocus.com/bid/100657 http://www.securitytracker.com/id/1039283 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-cms • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2017-6763
https://notcve.org/view.php?id=CVE-2017-6763
A vulnerability in the implementation of the H.264 protocol in Cisco Meeting Server (CMS) 2.1.4 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability exists because the affected application does not properly validate Fragmentation Unit (FU-A) protocol packets. An attacker could exploit this vulnerability by sending a crafted H.264 FU-A packet through the affected application. A successful exploit could allow the attacker to cause a DoS condition on the affected system due to an unexpected restart of the CMS media process on the system. Although the CMS platform continues to operate and only the single, affected CMS media process is restarted, a brief interruption of media traffic for certain users could occur. • http://www.securityfocus.com/bid/100111 http://www.securitytracker.com/id/1039058 https://quickview.cloudapps.cisco.com/quickview/bug/CSCve10131 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ms • CWE-20: Improper Input Validation •
CVE-2017-6753
https://notcve.org/view.php?id=CVE-2017-6753
A vulnerability in Cisco WebEx browser extensions for Google Chrome and Mozilla Firefox could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server, Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center), and Cisco WebEx Meetings when they are running on Microsoft Windows. The vulnerability is due to a design defect in the extension. An attacker who can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser. • http://www.securityfocus.com/bid/99614 http://www.securitytracker.com/id/1038909 http://www.securitytracker.com/id/1038910 http://www.securitytracker.com/id/1038911 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170717-webex • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •