Vulnerability in Cisco Firepower Threat Defense Software
CVE-2020-3308
A vulnerability in the Image Signature Verification feature of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.
EPSS: 0.006 (45.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Cisco Firepower Threat Defense Software — versions n/a
- Cisco Firepower_threat_defense
- Cisco Secure_firewall_management_center — versions 6.2.2, 6.2.3
- Cisco Secure_firewall_threat_defense
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3308?
- CVE-2020-3308 is a medium-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Improper Verification of Cryptographic Signature. CVSS score: 4.9/10. Published 2020-05-06.
- How severe is CVE-2020-3308?
- Medium severity. CVSS v3 base score is 4.9 out of 10.