Deserialization of untrusted data in Cisco Unified Communications products

1) Deserialization of Untrusted Data

EUVDB-ID: #VU85776

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-20253

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can send a specially crafted message to a listening port of an affected device and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Packaged Contact Center Enterprise: 12.0.0 - 12.5.2

Cisco Unified Communications Manager: 11.5(1) - 14.0

Cisco Unified Communications Manager IM & Presence Service: 11.0 - 14.0.0.98000.868

Cisco Unified Communications Manager Session Management Edition: 11.0 - 14.0.1.11900.3

Cisco Unified Contact Center Enterprise: 12.0 - 12.5.2

Cisco Unified Contact Center Express: 12.0 - 12.5.1

Cisco Unity Connection: 12.0 - 14.0.1.14006-5

Cisco Virtualized Voice Browser: 12.5.0 - 12.5.2

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_packaged_contact_center_enterprise:12.0.0:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_packaged_contact_center_enterprise:12.5.0:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_packaged_contact_center_enterprise:12.5.1 SU2:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:Unified CM:11.5(1):*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:Unified CM:11.5(1)SU11:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:Unified CM:12.2:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_unified_communications_manager_im_presence_service:11.0:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_unified_communications_manager_im_presence_service:11.5(1)SU11:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_unified_communications_manager_im_presence_service:11.5:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_unified_communications_manager_session_management_edition:11.0:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_unified_contact_center_enterprise:12.0:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_unified_contact_center_express:12.0:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_unity_connection:12.0:*:*:*:*:*:*:
• cpe:2.3:a:cisco_systems:cisco_virtualized_voice_browser:12.5.0:*:*:*:*:*:*:

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-rce-bWNzQcUm
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd64245
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd64276
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd64292
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwe18773
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwe18830
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwe18840

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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