#VU52966 Permissions, Privileges, and Access Controls in Cisco Systems, Inc products - CVE-2021-1520

Vulnerability identifier: #VU52966

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-1520

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco RV340 Dual WAN Gigabit VPN Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco RV345 Dual WAN Gigabit VPN Router
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco RV345P Dual WAN Gigabit VPN Router
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an internal messaging service does not properly sanitize input. A local administrator can run arbitrary commands with root privileges on the underlying OS.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco RV340 Dual WAN Gigabit VPN Router: before 1.0.03.21

Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router: before 1.0.03.21

Cisco RV345 Dual WAN Gigabit VPN Router: before 1.0.03.21

Cisco RV345P Dual WAN Gigabit VPN Router: before 1.0.03.21

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-34x-privesc-GLN8ZAQE

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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