#VU67968 Cross-site request forgery in Expressway Series and TelePresence Video Communication Server (VCS) - CVE-2022-20853

Vulnerability identifier: #VU67968

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-20853

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Expressway Series
Server applications / Conferencing, Collaboration and VoIP solutions
TelePresence Video Communication Server (VCS)
Other software / Other software solutions

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the REST API. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Expressway Series: 14.0

TelePresence Video Communication Server (VCS): 14.0

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-csrf-sqpsSfY6

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.