Vulnerability identifier: #VU9085

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-12261

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco Identity Services Engine (ISE)
Server applications / Other server solutions

Vendor: Cisco Systems, Inc

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

The weakness exists in the restricted shell of the Cisco Identity Services Engine (ISE) that is accessible via SSH due to incomplete input validation of the user input for CLI commands issued at the restricted shell. A local attacker can use valid user credentials and run arbitrary CLI commands with elevated privileges.

Mitigation
Install update from vendor's website (1.4 patch 12, 2.0 patch 6, 2.1 patch 5, 2.2.0 patch 2).

Vulnerable software versions

Cisco Identity Services Engine (ISE): 1.4 - 2.2

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-ise

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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.