#VU777 Privilege escalation in Cisco Network Convergence System 5000 Series - CVE-2016-6428

Vulnerability identifier: #VU777

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-2016-6428

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco Network Convergence System 5000 Series
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

Description
The vulnerability allows a local authenticated user to obtain root privileges on the target system.
The weakness is due to user permissions flaw that lets a malicious user to gain elevated privileges and cause arbitrary command execution with root privileges.
Successful exploitations of the vulnerability allows a local attacker to gain root privileges and execute arbitrary operating system commands on the vulnerable system.

Mitigation
Update to version 6.1.1.24i.BASE, 6.1.11.3i.BASE, 6.1.12.1i.BASE, 6.1.2.1i.BASE or 6.2.1.5i.BASE.

Vulnerable software versions

Cisco Network Convergence System 5000 Series: 6.1.1.BASE - 6.2.1.5i.BASE

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161005-iosxr

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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.