Command execution in Cisco D9800 Network Transport Receiver

1) OS command injection

EUVDB-ID: #VU10114

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0099

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

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

The weakness exists in the web management GUI of the Cisco D9800 Network Transport Receiver due to insufficient input validation of GUI command arguments. A remote attacker can inject specially crafted arguments into a vulnerable GUI command and execute commands on the underlying BusyBox operating system with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

D9800 Network Transport Receiver: All versions

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-ntr

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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