CVE-2018-0337: Input Validation
First published: Thu Jun 21 2018(Updated: )
A vulnerability in the role-based access-checking mechanisms of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on an affected device. The vulnerability exists because the affected software lacks proper input and validation checks for certain file systems. An attacker could exploit this vulnerability by issuing crafted commands in the CLI of an affected device. A successful exploit could allow the attacker to cause other users to execute unwanted, arbitrary commands on the affected device. Cisco Bug IDs: CSCvd06339, CSCvd15698, CSCvd36108, CSCvf52921, CSCvf52930, CSCvf52953, CSCvf52976.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco NX-OS | =7.0\(8\)n1\(1\) | |
| Cisco NX-OS | =7.1\(4\)n1\(1\) | |
| Cisco NX-OS | =7.3\(1\)n1\(0.6\) | |
| Cisco NX-OS | =7.3\(2\)n1\(0.350\) | |
| Cisco Nexus 5000 firmware | ||
| Cisco Nexus 5010 | ||
| Cisco Nexus 5020 | ||
| Cisco Nexus 5548P Firmware | ||
| Cisco Nexus 5548UP Firmware | ||
| Cisco Nexus 5596T Firmware | ||
| Cisco Nexus 5596UP Firmware | ||
| Cisco 56128p | ||
| Cisco Nexus 5624Q Firmware | ||
| Cisco Nexus 5648Q Firmware | ||
| Cisco Nexus 5672UP-16G | ||
| Cisco Nexus 5696Q Firmware | ||
| Cisco NX-OS | =7.3\(1\)dx\(0.119\) | |
| Cisco NX-OS | =7.3\(3\)d1\(0.2\) | |
| Cisco NX-OS | =8.0\(0.54\)s0 | |
| Cisco NX-OS | =8.1\(0\)bd\(0.20\) | |
| Cisco NX-OS | =8.1\(0.9\) | |
| Cisco NX-OS | =8.2\(0.4\)s0 | |
| Cisco NX-OS | =8.3\(0\)spg\(0.30\) | |
| Cisco NX-OS | =8.8\(3.5\)s0 | |
| Cisco Nexus 7000 | ||
| Cisco Nexus 7700 series |
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Reference Links
Frequently Asked Questions
What is CVE-2018-0337?
CVE-2018-0337 is a vulnerability in the role-based access-checking mechanisms of Cisco NX-OS Software that could allow an authenticated, local attacker to execute arbitrary commands on an affected device.
What is the severity of CVE-2018-0337?
The severity of CVE-2018-0337 is high, with a CVSS score of 7.8.
Which software versions are affected by CVE-2018-0337?
Cisco NX-OS Software versions 7.0(8)n1(1), 7.1(4)n1(1), 7.3(1)n1(0.6), and 7.3(2)n1(0.350) are affected by CVE-2018-0337.
How can an attacker exploit CVE-2018-0337?
An attacker can exploit CVE-2018-0337 by leveraging the lack of proper input and validation checks for certain file systems in the affected software.
Is there a fix available for CVE-2018-0337?
Yes, Cisco has released software updates to address the vulnerability. Please refer to the Cisco Security Advisory for more information.
- agent/type
- agent/author
- agent/references
- agent/severity
- agent/weakness
- agent/description
- agent/first-publish-date
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/cisco
- canonical/cisco nx-os
- version/cisco nx-os/7.0\(8\)n1\(1\)
- version/cisco nx-os/7.1\(4\)n1\(1\)
- version/cisco nx-os/7.3\(1\)n1\(0.6\)
- version/cisco nx-os/7.3\(2\)n1\(0.350\)
- canonical/cisco nexus 5000 firmware
- canonical/cisco nexus 5010
- canonical/cisco nexus 5020
- canonical/cisco nexus 5548p firmware
- canonical/cisco nexus 5548up firmware
- canonical/cisco nexus 5596t firmware
- canonical/cisco nexus 5596up firmware
- canonical/cisco 56128p
- canonical/cisco nexus 5624q firmware
- canonical/cisco nexus 5648q firmware
- canonical/cisco nexus 5672up-16g
- canonical/cisco nexus 5696q firmware
- version/cisco nx-os/7.3\(1\)dx\(0.119\)
- version/cisco nx-os/7.3\(3\)d1\(0.2\)
- version/cisco nx-os/8.0\(0.54\)s0
- version/cisco nx-os/8.1\(0\)bd\(0.20\)
- version/cisco nx-os/8.1\(0.9\)
- version/cisco nx-os/8.2\(0.4\)s0
- version/cisco nx-os/8.3\(0\)spg\(0.30\)
- version/cisco nx-os/8.8\(3.5\)s0
- canonical/cisco nexus 7000
- canonical/cisco nexus 7700 series