CVE-2022-44808: dlink dir-823g_firmware OS Command Injection

Vulnerability summary

CVE-2022-44808 is a critical (CVSS 9.8) OS Command Injection vulnerability in dlink dir-823g_firmware. EPSS estimates a 3.84% chance of exploitation in the next 30 days, higher than 90% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 22-11-2022
   PublishedVulnerability first disclosed.
2. 25-04-2025
   Last modifiedVulnerability information updated.

Description

A command injection vulnerability has been found on D-Link DIR-823G devices with firmware version 1.02B03 that allows an attacker to execute arbitrary operating system commands through well-designed /HNAP1 requests. Before the HNAP API function can process the request, the system function executes an untrusted command that triggers the vulnerability.

• 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.