SB2020022005 - Improper Verification of Cryptographic Signature in Cisco Enterprise NFV Infrastructure Software
Published: February 20, 2020
Security Bulletin ID
SB2020022005
CSH Severity
Low
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2020-3138)
CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature
CVSSv4: 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
The vulnerability allows a local user to install a malicious file when upgrading.
The vulnerability exists due to insufficient signature validation. A local administrator can provide a specially crafted upgrade file and upload crafted code to the affected device.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.