Vulnerability identifier: #VU10119

Vulnerability risk: Low

CVSSv3.1: 7.2 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0115

CWE-ID: CWE-77

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Cisco StarOS
Operating systems & Components / Operating system

Vendor: Cisco Systems, Inc

Description
The vulnerability allows an adjacent attacker to execute arbitrary commands on the target system.

The weakness exists in the CLI of the Cisco StarOS operating system for Cisco ASR 5000 Series routers due to insufficient validation of user-supplied input. An adjacent attacker can use valid administrator credentials to inject malicious command arguments into a vulnerable CLI command and execute arbitrary commands with root privileges

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Cisco StarOS: All versions

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-staros

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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