#VU25485 Input validation error in Cisco Meeting Server - CVE-2020-3160

Vulnerability identifier: #VU25485

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-3160

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Meeting Server
Client/Desktop applications / Multimedia software

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists within the Extensible Messaging and Presence Protocol (XMPP) feature due to improper input validation of XMPP packets. A remote attacker can send  specially crafted XMPP packets to an affected device and cause process crashes and a DoS condition for XMPP conferencing applications.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Meeting Server: before 2.8

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cms-xmpp-dos-ptfGUsBx

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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.