#VU51761 Improper Verification of Cryptographic Signature in Cisco Systems, Inc products - CVE-2021-1375

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Main Vulnerability Database Vulnerabilities #VU51761

#VU51761 Improper Verification of Cryptographic Signature in Cisco Systems, Inc products - CVE-2021-1375

Published: March 29, 2021


Vulnerability identifier: #VU51761
Vulnerability risk: Low
CVSSv4.0: 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-2021-1375
CWE-ID: CWE-347
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Cisco IOS XE
Cisco Catalyst 3850 Series Switches
Cisco Catalyst 9300 Series Switches
Cisco Catalyst 9300L Series Switches
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists in the fast reload feature due to incorrect validations of parameters passed to a configuration file that is executed when the device boots up. A local administrator can tamper with a configuration file stored on a device, execute unsigned code at boot time and bypass the software image verification check.


Remediation

Install updates from vendor's website.

External links