Remote code execution in Cisco Unified Communications SOAP API

Published: 2021-04-07

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE ID	CVE-2021-1362
CWE ID	CWE-94
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Cisco Unified Communications Manager Server applications / Remote management servers, RDP, SSH Cisco Unified Communications Manager Session Management Edition Server applications / Remote management servers, RDP, SSH Cisco Unified Communications Manager IM & Presence Service Client/Desktop applications / Other client software Cisco Unity Connection Client/Desktop applications / Messaging software Cisco Prime License Manager Client/Desktop applications / Software for system administration
Vendor

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Code Injection

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1362

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in the SOAP API endpoint. A remote user can send a specially crafted SOAP API request 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 Unified Communications Manager: before 11.5(1)SU9, 12.5(1)SU4

Cisco Unified Communications Manager IM & Presence Service: before 11.5(1)SU9, 12.5(1)SU4

Cisco Unified Communications Manager Session Management Edition: before 11.5(1)SU9, 12.5(1)SU4

Cisco Unity Connection: before 11.5(1)SU9, 12.5(1)SU4

Cisco Prime License Manager: before 11.5(1)SU9, 12.5(1)SU4

CPE

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-rce-pqVYwyb
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvv35203
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu56491
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvv41616
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvv59434

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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