#VU27584 Improper Verification of Cryptographic Signature in Cisco Firewall Threat Defense (FTD) - CVE-2020-3308

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Main Vulnerability Database Vulnerabilities #VU27584

#VU27584 Improper Verification of Cryptographic Signature in Cisco Firewall Threat Defense (FTD) - CVE-2020-3308

Published: May 7, 2020


Vulnerability identifier: #VU27584
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-3308
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco Firewall Threat Defense (FTD)
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote user to install a malicious software patch on an affected device.

The vulnerability exists due to improper verification of digital signatures for patch images in the Image Signature Verification feature. A remote administrator can craft an unsigned software patch, bypass signature checks, load it on an affected device and boot a malicious software patch image.


Remediation

Install updates from vendor's website.

External links