Privilege escalation in Cisco Systems, Inc products - CVE-2017-12339
Published: December 1, 2017
Vulnerability identifier: #VU9479
CSH Severity: Low
CVSS v4: 8.5 [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]
CVE-ID: CVE-2017-12339
CWE-ID: CWE-77
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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 of command arguments to the CLI parser. A local attacker can inject specially crafted command arguments into a vulnerable CLI command and execute arbitrary commands at the user's privilege level.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists in the CLI of Cisco NX-OS System Software due to insufficient input validation of command arguments to the CLI parser. A local attacker can inject specially crafted command arguments into a vulnerable CLI command and execute arbitrary commands at the user's privilege level.
Successful exploitation of the vulnerability may result in system compromise.
Affected software
Nexus 9500 R-Series Line Cards and Fabric Modules
Nexus 9000 Series Fabric Switches
Nexus 7700 Series Switches
Nexus 7000 Series Switches
Nexus 6000 Series Switches
Nexus 5600 Platform Switches
Nexus 5500 Platform Switches
Nexus 5000 Series Switches
Nexus 2000 Series Fabric Extenders
Multilayer Director Switches
Nexus 9000 Series Fabric Switches
Nexus 7700 Series Switches
Nexus 7000 Series Switches
Nexus 6000 Series Switches
Nexus 5600 Platform Switches
Nexus 5500 Platform Switches
Nexus 5000 Series Switches
Nexus 2000 Series Fabric Extenders
Multilayer Director Switches
How to mitigate CVE-2017-12339
Install update from vendor's website.