CVE-2021-27710 : What You Need to Know
Understand CVE-2021-27710, a Command Injection flaw in TOTOLINK X5000R and A720R routers, allowing remote execution of OS commands. Learn about impacts and mitigation.
Command Injection vulnerability in TOTOLINK X5000R router with firmware v9.1.0u.6118_B20201102 and TOTOLINK A720R router with firmware v4.1.5cu.470_B20200911 allows remote attackers to execute arbitrary OS commands via a modified HTTP request. This is due to the execution of glibc's system function with untrusted input.
Understanding CVE-2021-27710
This section provides insight into the nature and impact of the CVE-2021-27710 vulnerability.
What is CVE-2021-27710?
CVE-2021-27710 is a Command Injection vulnerability found in TOTOLINK X5000R and A720R routers, allowing attackers to run malicious commands remotely.
The Impact of CVE-2021-27710
The vulnerability enables threat actors to execute unauthorized commands on affected routers, potentially leading to a complete system compromise.
Technical Details of CVE-2021-27710
Explore the technical aspects and implications associated with CVE-2021-27710.
Vulnerability Description
The flaw arises from the direct passing of the 'ip' parameter to attackers, granting them control over the 'ip' field to launch OS attacks.
Affected Systems and Versions
TOTOLINK X5000R with firmware v9.1.0u.6118_B20201102 and TOTOLINK A720R with firmware v4.1.5cu.470_B20200911 are impacted by this vulnerability.
Exploitation Mechanism
Attackers exploit this flaw by sending crafted HTTP requests, manipulating the 'ip' parameter to execute unauthorized OS commands.
Mitigation and Prevention
Discover the steps to mitigate the risks posed by CVE-2021-27710 and safeguard affected systems.
Immediate Steps to Take
Immediately applying security updates from TOTOLINK to patch the vulnerability is crucial. Implement network monitoring to detect suspicious activities.
Long-Term Security Practices
Enforce strict input validation protocols in router firmware updates. Regularly audit and monitor network traffic for unusual patterns.
Patching and Updates
Frequently check for firmware updates from TOTOLINK and promptly apply patches to address known vulnerabilities.