CVE-2024-20253: unity connection — Fix

Description

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.

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CVSS v3.1 Score

9.9

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

Affected Products

Vendor	Product	Versions
cisco	unified_communications_manager	< 12.5\(1\)su8
cisco	unified_communications_manager	14.0 — 14su3
cisco	unified_communications_manager	< 12.5\(1\)su8
cisco	unified_communications_manager	14.0 — 14su3
cisco	unified_communications_manager_im_and_presence_service	< 12.5\(1\)su8
cisco	unified_communications_manager_im_and_presence_service	14.0 — 14.0su3
cisco	unity_connection	< 12.5\(1\)su8
cisco	unity_connection	14.0 — 14su3
cisco	unified_contact_center_express	All
cisco	virtualized_voice_browser	All
cisco	virtualized_voice_browser	All
cisco	virtualized_voice_browser	All

References

Advisories & Patches

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-rce-bWNzQcUm https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-rce-bWNzQcUm

Frequently Asked Questions

What is CVE-2024-20253? +

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. It has a CVSS v3.1 base score of 9.9 (CRITICAL).

How severe is CVE-2024-20253? +

CVE-2024-20253 has a CVSS v3.1 score of 9.9 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-20253? +

CVE-2024-20253 affects products from cisco, specifically: unified_communications_manager, unified_communications_manager_im_and_presence_service, unified_contact_center_express, unity_connection, virtualized_voice_browser. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-20253? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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