CVE-2022-35519 : Exploit Details and Defense Strategies
Learn about CVE-2022-35519, a command injection vulnerability in WAVLINK routers that allows attackers to run arbitrary commands, impacting system security. Find mitigation steps and preventive measures.
This CVE involves command injection in WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 firewall.cgi due to lack of filtering on the add_mac parameter in the /cli_black_list.shtml page.
Understanding CVE-2022-35519
This section will cover what CVE-2022-35519 is and its impact.
What is CVE-2022-35519?
CVE-2022-35519 is a vulnerability in WAVLINK routers that allows attackers to execute commands through the add_mac parameter on the /cli_black_list.shtml page, leading to command injection.
The Impact of CVE-2022-35519
The impact of this vulnerability is significant as it enables attackers to run arbitrary commands on the affected routers, potentially compromising the network security.
Technical Details of CVE-2022-35519
Here we will delve into the specific technical details of the vulnerability.
Vulnerability Description
The vulnerability arises from the lack of input validation on the add_mac parameter, allowing attackers to inject and execute commands.
Affected Systems and Versions
The affected systems include WAVLINK WN572HP3, WN533A8, WN530H4, WN535G3, WN531P3 routers. All versions are impacted.
Exploitation Mechanism
Exploiting this vulnerability involves manipulating the add_mac parameter to inject malicious commands, which are then executed by the firewall.cgi script.
Mitigation and Prevention
To address CVE-2022-35519, immediate steps need to be taken to secure the affected systems.
Immediate Steps to Take
Immediately update the firmware of the WAVLINK routers to the latest version that includes a patch for this vulnerability. Additionally, restrict access to the router's configuration interface.
Long-Term Security Practices
In the long term, it is advisable to regularly update all system firmware, implement network segmentation, and follow security best practices to minimize the risk of similar vulnerabilities.
Patching and Updates
Regularly check for updates from WAVLINK and apply patches as soon as they are available to ensure protection against known vulnerabilities.