Vulnerability · Published Dec 20, 2024 · Assigned by zdi

CVE-2024-12830Arista NG Firewall custom_handler Directory Traversal Remote Code Execution Vulnerability

High 8.1

In plain English

A high-severity path traversal in NG Firewall from Arista. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).

Severity (CVSS 3.0)8.1High

Exploit odds (30 days)1.0%top 36.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Arista NG Firewall custom_handler Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Arista NG Firewall. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the custom_handler method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of the www-data user. Was ZDI-CAN-24019.

Affected products (as reported)

Vendor	Product	Versions
Arista	NG Firewall	17.1.1

Weakness: CWE-22 · Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

ZDI-24-1718 x_research-advisory