Improper access control in Cisco Systems, Inc products - CVE-2021-34794
Published: October 29, 2021
Vulnerability identifier: #VU57768
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-34794
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the Simple Network Management Protocol version 3 (SNMPv3) access control functionality. A remote user can bypass implemented security restrictions and send an SNMPv3 query to an affected device from a host that is not permitted by the SNMPv3 access control list.
Affected software
ASA 5500-X Series Firewalls
Cisco Firewall Threat Defense (FTD)
Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)
Cisco Adaptive Security Appliance (ASA)
How to mitigate CVE-2021-34794
Install updates from vendor's website.
Cisco Firewall Threat Defense (FTD) - addressed in versions 6.4.0.13, 6.6.5, 6.7.0.1
Cisco Adaptive Security Appliance (ASA) - addressed in versions 9.14.2.4, 9.15.1.7
Cisco Adaptive Security Appliance (ASA) - addressed in versions 9.14.2.4, 9.15.1.7