CVE-2021-27113: dlink dir-816_firmware OS Command Injection

Vulnerability summary

CVE-2021-27113 is a high (CVSS 10.0) OS Command Injection vulnerability in dlink dir-816_firmware. EPSS estimates a 3.46% chance of exploitation in the next 30 days, higher than 88.8% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 14-04-2021
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction within the handler function of the /goform/addRouting route. This could lead to Command Injection via Shell Metacharacters.

• 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.