CVE-2019-1727
Last modified
CVE-2019-1727 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. 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. EPSS estimates a 0.55% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Nx-Os | >= 5.2, < 8.1\(1b\) |
| Cisco | Nx-Os | >= 8.2, < 8.3\(1\) |
| 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 | Nx-Os | >= 7.3, < 7.3\(4\)n1\(1\) |
| Cisco | Nx-Os | >= 6.2, < 7.3\(3\)d1\(1\) |
| Cisco | Nx-Os | >= 8.0, < 8.3\(1\) |
References
- http://www.securityfocus.com/bid/108341Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/108341Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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