CVE-2019-1727: OS Command Injection
First published: Wed May 15 2019(Updated: )
A vulnerability in the Python scripting subsystem of Cisco NX-OS Software could allow an authenticated, local attacker to escape the Python parser and issue arbitrary commands to elevate the attacker's privilege level. The vulnerability is due to insufficient sanitization of user-supplied parameters that are passed to certain Python functions in the scripting sandbox of the affected device. An attacker could exploit this vulnerability to escape the scripting sandbox and execute arbitrary commands to elevate the attacker's privilege level. To exploit this vulnerability, the attacker must have local access and be authenticated to the targeted device with administrative or Python execution privileges. These requirements could limit the possibility of a successful exploit.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Nx-os | >=5.2<8.1\(1b\) | |
| Cisco Nx-os | >=8.2<8.3\(1\) | |
| Cisco MDS 9000 | ||
| Cisco Mds 9100 | ||
| Cisco Mds 9200 | ||
| Cisco Mds 9500 | ||
| Cisco Mds 9700 | ||
| Cisco Nx-os | >=7.0\(3\)i4<7.0\(3\)i4\(8\) | |
| Cisco Nx-os | >=7.0\(3\)i5<7.0\(3\)i7\(3\) | |
| Cisco Nexus 3000 | ||
| Cisco Nexus 3100 | ||
| Cisco Nexus 3100-z | ||
| Cisco Nexus 3100v | ||
| Cisco Nexus 3200 | ||
| Cisco Nexus 3400 | ||
| Cisco Nexus 3500 | ||
| Cisco Nexus 3524-x | ||
| Cisco Nexus 3524-xl | ||
| Cisco Nexus 3548-x | ||
| Cisco Nexus 3548-xl | ||
| Cisco Nexus 3600 | ||
| Cisco Nexus 9000 | ||
| Cisco Nexus 9200 | ||
| Cisco Nexus 9300 | ||
| Cisco Nexus 9500 | ||
| Cisco Nx-os | >=7.3<7.3\(4\)n1\(1\) | |
| Cisco Nexus 5500 | ||
| Cisco Nexus 5600 | ||
| Cisco Nexus 6000 | ||
| Cisco Nx-os | >=6.2<7.3\(3\)d1\(1\) | |
| Cisco Nx-os | >=8.0<8.3\(1\) | |
| Cisco Nexus 7000 | ||
| Cisco Nexus 7700 |
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-2019-1727?
CVE-2019-1727 is a vulnerability in the Python scripting subsystem of Cisco NX-OS Software that could allow an authenticated, local attacker to execute arbitrary commands with elevated privileges.
What is the severity of CVE-2019-1727?
The severity of CVE-2019-1727 is high with a CVSS score of 6.7.
Which Cisco products are affected by CVE-2019-1727?
Cisco NX-OS Software versions 5.2 to 8.1(1b), 8.2 to 8.3(1) are affected by CVE-2019-1727.
How can I fix CVE-2019-1727?
Cisco has released patches to address the vulnerability. It is recommended to update to the latest version of Cisco NX-OS Software.
Where can I find more information about CVE-2019-1727?
You can find more information about CVE-2019-1727 on the Cisco Security Advisory page and the SecurityFocus website.
- collector/nvd-index
- vendor/cisco
- canonical/cisco nx-os
- version/cisco nx-os/5.2
- version/cisco nx-os/8.2
- canonical/cisco mds 9000
- canonical/cisco mds 9100
- canonical/cisco mds 9200
- canonical/cisco mds 9500
- canonical/cisco mds 9700
- version/cisco nx-os/7.0\(3\)i4
- version/cisco nx-os/7.0\(3\)i5
- canonical/cisco nexus 3000
- canonical/cisco nexus 3100
- canonical/cisco nexus 3100-z
- canonical/cisco nexus 3100v
- canonical/cisco nexus 3200
- canonical/cisco nexus 3400
- canonical/cisco nexus 3500
- canonical/cisco nexus 3524-x
- canonical/cisco nexus 3524-xl
- canonical/cisco nexus 3548-x
- canonical/cisco nexus 3548-xl
- canonical/cisco nexus 3600
- canonical/cisco nexus 9000
- canonical/cisco nexus 9200
- canonical/cisco nexus 9300
- canonical/cisco nexus 9500
- version/cisco nx-os/7.3
- canonical/cisco nexus 5500
- canonical/cisco nexus 5600
- canonical/cisco nexus 6000
- version/cisco nx-os/6.2
- version/cisco nx-os/8.0
- canonical/cisco nexus 7000
- canonical/cisco nexus 7700