A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to the improper processing of user-provided data that is being read into memory. An attacker could exploit this vulnerability by sending a crafted message to a listening port of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with the privileges of the web services user. With access to the underlying operating system, the attacker could also establish root access on the affected device.

With historical exploitation of Cisco devices and the critical severity of this RCE, Tenable research is carefully monitoring for signs of active exploitation or PoC code.

According to its self-reported version, Cisco Unified Communications Manager IM & Presence running on the report host is affected by a remote code execution (RCE) vulnerability. Due to improper processing of user-provided data that is being read into memory, an unauthenticated, remote, attacker can execute arbitrary code with the privileges of the web services users. With access to the underlying operating system, the attacker could also establish root access on the affected device.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

According to its self-reported version, Cisco Unity Connection running on the report host is affected by a remote code execution (RCE) vulnerability. Due to improper processing of user-provided data that is being read into memory, an unauthenticated, remote, attacker can execute arbitrary code with the privileges of the web services users. With access to the underlying operating system, the attacker could also establish root access on the affected device.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

According to its self-reported version, Cisco Unified Communications Manager running on the report host is affected by a remote code execution (RCE) vulnerability. Due to improper processing of user-provided data that is being read into memory, an unauthenticated, remote, attacker can execute arbitrary code with the privileges of the web services users.
With access to the underlying operating system, the attacker could also establish root access on the affected device.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

ID	Name	Product	Family	Severity
189533	Cisco Unified Communications Manager IM & Presence RCE (cisco-sa-cucm-rce-bWNzQcUm)	Nessus	CISCO	critical
189532	Cisco Unity Connection RCE (cisco-sa-cucm-rce-bWNzQcUm)	Nessus	CISCO	critical
189531	Cisco Unified Communications Manager RCE (cisco-sa-cucm-rce-bWNzQcUm)	Nessus	CISCO	critical

Detections

Analytics

CVE-2024-20253

critical

Tenable Plugins

critical

critical

critical