CVE-2019-1602: Cisco NX-OS Software Privilege Escalation Vulnerability
First published: Fri Mar 08 2019(Updated: )
A vulnerability in the filesystem permissions of Cisco NX-OS Software could allow an authenticated, local attacker to access sensitive data that could be used to elevate their privileges to administrator. The vulnerability is due to improper implementation of filesystem permissions. An attacker could exploit this vulnerability by logging in to the CLI of an affected device, accessing a specific file, and leveraging this information to authenticate to the NX-API server. A successful exploit could allow an attacker to make configuration changes as administrator. Note: NX-API is disabled by default. Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 9000 Series Switches-Standalone are affected in versions prior to 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Nx-os | >=7.0\(3\)i5<7.0\(3\)i7\(4\) | |
| Cisco Nexus 3000 | ||
| Cisco Nexus 9000 | ||
| Cisco Nx-os | >=7.0\(3\)f3<7.0\(3\)f3\(5\) | |
| Cisco Nexus 3600 | ||
| Cisco Nx-os | >=7.0\(3\)f1<7.0\(3\)f3\(5\) | |
| Cisco Nexus 9500 | ||
| Cisco Nx-os | >=7.0\(3\)<7.0\(3\)f3\(5\) | |
| Cisco Nexus 3500 |
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Reference Links
Frequently Asked Questions
What is CVE-2019-1602?
CVE-2019-1602 is a vulnerability in the filesystem permissions of Cisco NX-OS Software that could allow an attacker to access sensitive data and elevate their privileges.
How does CVE-2019-1602 affect Cisco NX-OS Software?
CVE-2019-1602 affects Cisco NX-OS Software by allowing an authenticated, local attacker to access sensitive data and potentially elevate their privileges to administrator.
What is the severity of CVE-2019-1602?
CVE-2019-1602 has a severity rating of 7.8 (High).
How can an attacker exploit CVE-2019-1602?
An attacker could exploit CVE-2019-1602 by leveraging improper implementation of filesystem permissions to gain unauthorized access and elevate their privileges.
Where can I find more information about CVE-2019-1602?
You can find more information about CVE-2019-1602 in the following references: [SecurityFocus](http://www.securityfocus.com/bid/107332) and [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-escalation).
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- canonical/cisco nexus 3600
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- canonical/cisco nexus 9500
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