OS command injection in Cisco Systems, Inc products - CVE-2019-1839

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Main Vulnerability Database Vulnerabilities #VU20381

OS command injection in Cisco Systems, Inc products - CVE-2019-1839

Published: August 23, 2019 / Updated: August 26, 2019


Vulnerability identifier: #VU20381
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-1839
CWE-ID: CWE-78
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Remote PHY Shelf 7200
Cisco Remote PHY 220
Cisco Remote PHY 120

Detailed vulnerability description

The vulnerability allows a local attacker to execute commands on the underlying Linux shell.

The vulnerability exists due to insufficient validation of user-supplied input. A local authenticated user can supply various CLI commands with crafted arguments, run arbitrary commands and take over the target system.


How to mitigate CVE-2019-1839

Install updates from vendor's website.

Sources