Vulnerability identifier: #VU11341

Vulnerability 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-2018-0195

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco IOS XE
Operating systems & Components / Operating system

Vendor: Cisco Systems, Inc

Description
The vulnerability allows a remote authenticated attacker to bypass authorization and obtain elevated privileges on the target system.

The weakness exists in the REST API due to insufficient authorization checks for requests that are sent to the REST API. A remote attacker can send a specially crafted request via the REST API, bypass authorization and gain root privileges.

Mitigation
Update to versions 16.4.1, 16.4(0.54), 16.3.1, 16.3(0.225) or 16.2(1.31).

Vulnerable software versions

Cisco IOS XE: 16.1.2 - 16.3.0

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-rest

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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.