CVE-2017-12338: Input Validation
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 read the contents of arbitrary files. The vulnerability is due to insufficient input validation for a specific CLI command. An attacker could exploit this vulnerability by issuing a crafted command on the CLI. An exploit could allow the attacker unauthorized access to read arbitrary files on the underlying local file system. On products that support multiple virtual device contexts (VDCs), this vulnerability could allow an attacker to read files from any VDC. 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 Fabric Switches in Application Centric Infrastructure (ACI) mode, 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: CSCve51707, CSCve93961, CSCve93964, CSCve93965, CSCve93968, CSCve93974, CSCve93976.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Nx-os | =8.0\(1\) | |
| Cisco Nx-os | =8.1\(0\)bd\(0.20\) | |
| Cisco Nx-os | =8.1\(1\) | |
| Cisco Unified Computing System | =7.0\(0\)hsk\(0.357\) | |
| Cisco Lan Switch Software | =12.2\(1.107\) |
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Reference Links
Frequently Asked Questions
What is CVE-2017-12338?
CVE-2017-12338 is a vulnerability in the CLI of Cisco NX-OS System Software that could allow an authenticated, local attacker to read the contents of arbitrary files.
How severe is CVE-2017-12338?
CVE-2017-12338 has a severity level of medium.
Which software versions are affected by CVE-2017-12338?
CVE-2017-12338 affects Cisco NX-OS versions 8.0(1), 8.1(0)bd(0.20), and 8.1(1).
How can an attacker exploit CVE-2017-12338?
An attacker can exploit CVE-2017-12338 by issuing a crafted command in the CLI.
Is there a fix available for CVE-2017-12338?
Yes, Cisco has released updates to address the vulnerability. Refer to the Cisco Security Advisory for more information.
- collector/nvd-index
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/weakness
- agent/last-modified-date
- agent/first-publish-date
- agent/tags
- agent/description
- agent/event
- agent/trending
- vendor/cisco
- canonical/cisco nx-os
- version/cisco nx-os/8.0\(1\)
- 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\(0.357\)
- canonical/cisco lan switch software
- version/cisco lan switch software/12.2\(1.107\)