CVE-2023-33012: zyxel atp series firmware OS Command Injection

Vulnerability summary

CVE-2023-33012 is a high (CVSS 8.8) OS Command Injection vulnerability in zyxel atp series firmware. EPSS estimates a 9.88% chance of exploitation in the next 30 days, higher than 95.5% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 17-07-2023
   PublishedVulnerability first disclosed.
2. 05-03-2025
   Last modifiedVulnerability information updated.

Description

A command injection vulnerability in the configuration parser of the Zyxel ATP series firmware versions 5.10 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 5.10 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.10 through 5.36 Patch 2, and VPN series firmware versions 5.00 through 5.36 Patch 2, could allow an unauthenticated, LAN-based attacker to execute some OS commands by using a crafted GRE configuration when the cloud management mode is enabled.

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.