Privilege escalation in Cisco Unified Communications Manager

1) Privilege escalation

EUVDB-ID: #VU9387

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-12337

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain elevated privileges on the target system.

The weakness exists in Cisco Voice Operating System (VOS) software platform device due to improper authentication when a refresh upgrade or Prime Collaboration Deployment (PCD) migration is performed. A remote attacker can gain root access to the device with a known password and compromise the affected system.

Mitigation

The vulnerability is fixed in the version 11.5(1.12001.5).

Vulnerable software versions

Unified Communications Manager (CallManager): 8.6.4.98000.782 - 11.7.1 MN560

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-vos

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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