CVE-2021-45742: totolink a720r_firmware Command Injection

Vulnerability summary

CVE-2021-45742 is a high (CVSS 10.0) Command Injection vulnerability in totolink a720r_firmware. EPSS estimates a 3.07% chance of exploitation in the next 30 days, higher than 87.5% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

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

Description

TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a command injection vulnerability in the "Main" function. This vulnerability allows attackers to execute arbitrary commands via the QUERY_STRING parameter.

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.