CVE-2017-12335: Command Injection
First published: Thu Nov 30 2017(Updated: )
A vulnerability in the CLI of Cisco NX-OS System Software could allow an authenticated, local attacker to perform a command injection attack. The vulnerability is due to insufficient input validation of command arguments. An attacker could exploit this vulnerability by injecting crafted command arguments into a vulnerable CLI command and gain unauthorized access to the underlying operating system of the device. An exploit could allow the attacker to execute arbitrary commands at the user's privilege level. On products that support multiple virtual device contexts (VDCs), this vulnerability could allow an attacker to execute commands at the user's privilege level outside the user's environment. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 5000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, Unified Computing System Manager. Cisco Bug IDs: CSCvf14923, CSCvf14926, CSCvg04095.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Nx-os | =7.0\(0\)hsk\(0.357\) | |
| Cisco Nx-os | =8.1\(0\)bd\(0.20\) | |
| Cisco Nx-os | =8.1\(1\) | |
| Cisco Unified Computing System | =7.0\(0\)hsk\(0.357\) |
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Reference Links
Frequently Asked Questions
What is CVE-2017-12335?
CVE-2017-12335 is a vulnerability in the CLI of Cisco NX-OS System Software that could allow an authenticated local attacker to perform a command injection attack.
What is the severity of CVE-2017-12335?
The severity of CVE-2017-12335 is medium with a CVSS score of 6.3.
How does CVE-2017-12335 affect Cisco NX-OS System Software?
CVE-2017-12335 affects Cisco NX-OS System Software versions 7.0(0)hsk(0.357), 8.1(0)bd(0.20), and 8.1(1).
How can an attacker exploit CVE-2017-12335?
An attacker can exploit CVE-2017-12335 by injecting crafted command arguments.
Where can I find more information about CVE-2017-12335?
You can find more information about CVE-2017-12335 on the following websites: [SecurityFocus](http://www.securityfocus.com/bid/102165), [SecurityTracker](http://www.securitytracker.com/id/1039935), and [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos4).
- collector/nvd-index
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/type
- agent/event
- agent/description
- agent/first-publish-date
- agent/last-modified-date
- agent/softwarecombine
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/cisco
- canonical/cisco nx-os
- version/cisco nx-os/7.0\(0\)hsk\(0.357\)
- version/cisco nx-os/8.1\(0\)bd\(0.20\)
- version/cisco nx-os/8.1\(1\)
- canonical/cisco unified computing system
- version/cisco unified computing system/7.0\(0\)hsk\(0.357\)