CVE-2019-1591: Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Shell Escape Vulnerability
First published: Wed Mar 06 2019(Updated: )
A vulnerability in a specific CLI command implementation of Cisco Nexus 9000 Series ACI Mode Switch Software could allow an authenticated, local attacker to escape a restricted shell on an affected device. The vulnerability is due to insufficient sanitization of user-supplied input when issuing a specific CLI command with parameters on an affected device. An attacker could exploit this vulnerability by authenticating to the device CLI and issuing certain commands. A successful exploit could allow the attacker to escape the restricted shell and execute arbitrary commands with root-level privileges on the affected device. This vulnerability only affects Cisco Nexus 9000 Series ACI Mode Switches that are running a release prior to 14.0(3d).
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Nx-os | <14.0\(3d\) | |
| Cisco Nexus 9000 | ||
| All of | ||
| Cisco Nx-os | <14.0\(3d\) | |
| Cisco Nexus 9000 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Cisco Nexus 9000 Series ACI Mode Switch Software vulnerability?
The vulnerability ID for this Cisco Nexus 9000 Series ACI Mode Switch Software vulnerability is CVE-2019-1591.
What is the severity of CVE-2019-1591?
The severity of CVE-2019-1591 is high with a CVSS score of 7.8.
How does CVE-2019-1591 affect Cisco Nexus 9000 Series ACI Mode Switch Software?
CVE-2019-1591 allows an authenticated, local attacker to escape a restricted shell on an affected device.
How can I fix CVE-2019-1591 in Cisco Nexus 9000 Series ACI Mode Switch Software?
To fix CVE-2019-1591, Cisco recommends upgrading to a fixed release of the Cisco Nexus 9000 Series ACI Mode Switch Software.
Where can I find more information about CVE-2019-1591?
You can find more information about CVE-2019-1591 on the Cisco Security Advisory page and the SecurityFocus website.
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