#VU13435 Command injection in Cisco NX-OS - CVE-2018-0337

Vulnerability identifier: #VU13435

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-0337

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco NX-OS
Operating systems & Components / Operating system

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local attacker to execute arbitrary commands on the target system.

The vulnerability exists in the role-based access-checking mechanisms of Cisco NX-OS Software due to improper input and validation checks for certain file systems. A local attacker can issue specially crafted commands in the CLI and execute unwanted, arbitrary commands.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Cisco NX-OS: All versions

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-nxos-rbacces...

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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.