Improper Verification of Cryptographic Signature in Cisco Enterprise NFV Infrastructure Software

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU25475

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-3138

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

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.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Enterprise NFV Infrastructure Software: 3.11.1

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nfvis-codex-shs4NhvS

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.