cisco-sa-cucm-arb-write-74QzruUU: Cisco Unified Communications Products Arbitrary File Write Vulnerability
First published: Wed Apr 20 2022(Updated: )
A vulnerability in the software upgrade process of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to write arbitrary files on the affected system. This vulnerability is due to improper restrictions applied to a system script. An attacker could exploit this vulnerability by using crafted variables during the execution of a system upgrade. A successful exploit could allow the attacker to overwrite or append arbitrary data to system files using root-level privileges. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-arb-write-74QzruUU
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Unified CM | <14SU1 | 14SU1 |
| Cisco Unified CM SME | <14SU1 | 14SU1 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is cisco-sa-cucm-arb-write-74QzruUU.
What is the title of this vulnerability?
The title of this vulnerability is Cisco Unified Communications Products Arbitrary File Write Vulnerability.
What is the affected software?
The affected software includes Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME).
What is the severity of this vulnerability?
The severity of this vulnerability is medium with a severity value of 4.9.
How can an attacker exploit this vulnerability?
An authenticated, remote attacker can exploit this vulnerability to write arbitrary files on the affected system.
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