#VU9484 Privilege escalation in Cisco Systems, Inc products - CVE-2017-12341


| Updated: 2018-07-20

Vulnerability identifier: #VU9484

Vulnerability risk: Low

CVSSv4.0: 2.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:U/U:Clear]

CVE-ID: CVE-2017-12341

CWE-ID: CWE-77

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Nexus 7700 Series Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc
Nexus 7000 Series Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc
Nexus 6000 Series Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc
Nexus 5600 Platform Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc
Nexus 5500 Platform Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc
Nexus 5000 Series Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc
Nexus 2000 Series Fabric Extenders
Hardware solutions / Routers & switches, VoIP, GSM, etc
Multilayer Director Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc
Cisco Unified Computing System Manager
Server applications / Remote management servers, RDP, SSH

Vendor: Cisco Systems, Inc

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

The weakness exists in the CLI of Cisco NX-OS System Software due to insufficient input validation during the installation of a software patch. A local attacker with knowledge of valid administrator credentials can install a specially crafted patch image with the vulnerable operation occurring prior to patch activation and execute arbitrary commands with root privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Nexus 7700 Series Switches: All versions

Nexus 7000 Series Switches: All versions

Nexus 6000 Series Switches: All versions

Nexus 5600 Platform Switches: All versions

Nexus 5500 Platform Switches: All versions

Nexus 5000 Series Switches: All versions

Nexus 2000 Series Fabric Extenders: All versions

Multilayer Director Switches: All versions

Cisco Unified Computing System Manager: All versions

External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos8

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.


Latest bulletins with this vulnerability


Multiple vulnerabilities in Cisco NX-OS System Software