CVE-2019-1601: Cisco NX-OS Software Unauthorized Filesystem Access 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 gain read and write access to a critical configuration file. The vulnerability is due to a failure to impose strict filesystem permissions on the targeted device. An attacker could exploit this vulnerability by accessing and modifying restricted files. A successful exploit could allow an attacker to use the content of this configuration file to bypass authentication and log in as any user of the device. MDS 9000 Series Multilayer Switches are affected in versions prior to 6.2(25), 8.1(1b), and 8.3(1). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 6.0(2)A8(10) and 7.0(3)I7(4). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 2000, 5500, 5600, and 6000 Series Switches are affected in versions prior to 7.1(5)N1(1b) and 7.3(3)N1(1). Nexus 7000 and 7700 Series Switches are affected in versions prior to 6.2(22), 7.3(3)D1(1), and 8.2(3). Nexus 9000 Series Switches-Standalone are affected in versions prior to 7.0(3)I4(9) and 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 | >=8.2<8.3\(1\) | |
| Cisco MDS 9000 | ||
| Cisco Nx-os | >=7.0\(3\)<7.0\(3\)i7\(4\) | |
| Cisco Nexus 3500 | ||
| Cisco Nx-os | >=7.0\(3\)i5<7.0\(3\)i7\(4\) | |
| Cisco Nexus 3000 | ||
| Cisco Nx-os | >=7.0\(3\)f3<7.0\(3\)f3\(5\) | |
| Cisco Nexus 3600 | ||
| Cisco Nexus 9000 | ||
| Cisco Nx-os | >=7.0\(3\)f1<7.0\(3\)f3\(5\) | |
| Cisco Nexus 9500 | ||
| Cisco Nx-os | >=7.3<8.1\(1b\) | |
| Cisco Nx-os | <6.2\(25\) | |
| Cisco Nx-os | <7.0\(3\)i4\(9\) | |
| Cisco Nexus 7000 | ||
| Cisco Nexus 7700 | ||
| Cisco Nx-os | >=7.2<7.3\(3\)d1\(1\) | |
| Cisco Nx-os | <6.2\(22\) | |
| Cisco Nx-os | <6.0\(2\)a8\(10\) | |
| Cisco Nx-os | >=7.2<7.3\(3\)n1\(1\) | |
| Cisco Nexus 2000 | ||
| Cisco Nexus 5500 | ||
| Cisco Nexus 5600 | ||
| Cisco Nexus 6000 | ||
| Cisco Nx-os | <7.1\(5\)n1\(1b\) | |
| Cisco Nx-os | >=8.0<8.1\(2\) |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is CVE-2019-1601?
CVE-2019-1601 is a vulnerability in the filesystem permissions of Cisco NX-OS Software that could allow an authenticated attacker to gain read and write access to a critical configuration file.
How severe is CVE-2019-1601?
CVE-2019-1601 has a severity rating of 7.8 (High).
Which systems are affected by CVE-2019-1601?
Cisco NX-OS Software versions 8.2 (up to 8.3(1)) and 7.0(3) (up to 7.0(3)i7(4)) are affected by CVE-2019-1601.
How can an attacker exploit CVE-2019-1601?
An authenticated, local attacker can exploit CVE-2019-1601 by exploiting the failure to impose strict filesystem permissions on the targeted device.
Where can I find more information about CVE-2019-1601?
You can find more information about CVE-2019-1601 on the following websites: [SecurityFocus](http://www.securityfocus.com/bid/107404) and [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-file-access).
- collector/nvd-index
- agent/references
- agent/weakness
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/severity
- agent/author
- agent/last-modified-date
- agent/title
- agent/first-publish-date
- agent/tags
- agent/description
- agent/event
- vendor/cisco
- canonical/cisco nx-os
- version/cisco nx-os/8.2
- canonical/cisco mds 9000
- version/cisco nx-os/7.0\(3\)
- canonical/cisco nexus 3500
- version/cisco nx-os/7.0\(3\)i5
- canonical/cisco nexus 3000
- version/cisco nx-os/7.0\(3\)f3
- canonical/cisco nexus 3600
- canonical/cisco nexus 9000
- version/cisco nx-os/7.0\(3\)f1
- canonical/cisco nexus 9500
- version/cisco nx-os/7.3
- canonical/cisco nexus 7000
- canonical/cisco nexus 7700
- version/cisco nx-os/7.2
- canonical/cisco nexus 2000
- canonical/cisco nexus 5500
- canonical/cisco nexus 5600
- canonical/cisco nexus 6000
- version/cisco nx-os/8.0