CVE-2021-40413 : Security Advisory and Response
Learn about CVE-2021-40413, an incorrect default permission vulnerability in Reolink RLC-410W v3.0.0.136_20121102 with a CVSS base score of 7.1 and high availability impact. Discover mitigation strategies and affected systems.
This CVE-2021-40413 article provides insights into the incorrect default permission vulnerability in Reolink RLC-410W v3.0.0.136_20121102.
Understanding CVE-2021-40413
CVE-2021-40413 involves an incorrect default permission vulnerability in the cgiserver.cgi cgi_check_ability of Reolink RLC-410W v3.0.0.136_20121102.
What is CVE-2021-40413?
The vulnerability allows an attacker to trigger the ability check API, potentially leading to unauthorized firmware upgrades.
The Impact of CVE-2021-40413
The vulnerability has a CVSS base score of 7.1, with high availability impact.
Technical Details of CVE-2021-40413
CVE-2021-40413 details are as follows:
Vulnerability Description
The issue resides in the UpgradePrepare API, enabling the exploit of new version identification for firmware upgrade operations.
Affected Systems and Versions
- Vendor: Reolink
- Product: RLC-410W
- Version: v3.0.0.136_20121102
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: Low
- Scope: Unchanged
Mitigation and Prevention
Effective mitigation strategies for CVE-2021-40413:
Immediate Steps to Take
- Implement firewall rules to restrict unnecessary network traffic.
- Regularly monitor system logs for suspicious activities.
- Apply vendor-provided patches promptly.
Long-Term Security Practices
- Conduct regular security assessments and audits.
- Keep systems up-to-date with the latest security patches.
- Educate users on safe browsing habits and potential threats.
Patching and Updates
- Reolink has likely released patches addressing this vulnerability.