CVE-2020-3423

A vulnerability in the implementation of the Lua interpreter that is integrated in Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code with root privileges on the underlying Linux operating system (OS) of an affected device. The vulnerability is due to insufficient restrictions on Lua function calls within the context of user-supplied Lua scripts. An attacker with valid administrative credentials could exploit this vulnerability by submitting a malicious Lua script. When this file is processed, an exploitable buffer overflow condition could occur. A successful exploit could allow the attacker to execute arbitrary code with root privileges on the underlying Linux OS of the affected device.

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-lua-rce-7VeJX4f	Vendor Advisory

Configuration 1

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Published : 2020-09-24 06:15

Updated : 2021-10-07 08:11

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NVD link : CVE-2020-3423

Mitre link : CVE-2020-3423

4451-x Integrated Services Router

Cisco

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer