Security restrictions bypass in Cisco Enterprise NFV Infrastructure Software

1) Improper input validation

EUVDB-ID: #VU17202

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1656

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local attacker to bypass security restrictions.

The vulnerability exists due to improper input validation. A local attacker can send specially crafted commands and gain shell access with a non-root user account to the underlying Linux operating system on the affected device and potentially access system configuration files with sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Enterprise NFV Infrastructure Software: 3.9.1

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190123-nfvis-shell-...

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.