CVE-2021-46314: dlink dir-846_firmware OS Command Injection

Vulnerability summary

CVE-2021-46314 is a critical (CVSS 9.8) OS Command Injection vulnerability in dlink dir-846_firmware. EPSS estimates a 33.29% chance of exploitation in the next 30 days, higher than 98.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 17-02-2022
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

A Remote Command Execution (RCE) vulnerability exists in HNAP1/control/SetNetworkTomographySettings.php of D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin because backticks can be used for command injection when judging whether it is a reasonable domain name.

• 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.