CVE Vulnerability

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.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

4.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sigbypass-FcvPPCeP Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_management_center:6.2.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firepower_management_center:6.2.3:*:*:*:*:*:*:*
Information

Published : 2020-05-06 05:15

Updated : 2020-05-12 05:22

NVD link : CVE-2020-3308

Mitre link : CVE-2020-3308

Products Affected
No products.
CWE
CWE-347

Improper Verification of Cryptographic Signature