Cisco Expressway Series file overwrite | CVE-2022-20754
NAME
Cisco Expressway Series file overwrite
- Platforms Affected:
Cisco Telepresence Video Communication Server
Cisco Expressway Series - Risk Level:
9 - Exploitability:
Unproven - Consequences:
Gain Access
DESCRIPTION
Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow a remote authenticated attacker to overwrite arbitrary files on the system, caused by insufficient input validation of user-supplied command arguments. By authenticating to the system as an administrative user and then submitting specially crafted input to the affected command, an attacker could exploit this vulnerability to overwrite arbitrary files on the underlying operating system as the root user.
CVSS 3.0 Information
- Privileges Required: High
- User Interaction: None
- Scope: Changed
- Access Vector: Network
- Access Complexity: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: Low
- Remediation Level: Official Fix
MITIGATION
Refer to Cisco Security Advisory cisco-sa-expressway-filewrite-87Q5YRk for patch, upgrade or suggested workaround information. See References.
- Reference Link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-filewrite-87Q5YRk - Reference Link:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20754
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