CVE-2021-20860 : What You Need to Know
Discover the CSRF vulnerability in ELECOM LAN routers (WRC-1167GST2, WRC-2533GS2-B, WRC-1750GS, and more) with CVE-2021-20860. Learn the impact, affected systems, mitigation steps, and prevention measures.
Cross-site request forgery (CSRF) vulnerability in ELECOM LAN routers allows a remote attacker to hijack an administrator's authentication. The affected versions include WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, and more.
Understanding CVE-2021-20860
This CVE discloses a CSRF weakness in ELECOM LAN routers that can be exploited by a remote authenticated attacker to compromise an administrator's authentication.
What is CVE-2021-20860?
The CVE-2021-20860 is a CSRF vulnerability found in ELECOM LAN routers, enabling a remote attacker to take over an administrator's authentication through a specially crafted page.
The Impact of CVE-2021-20860
This vulnerability poses a significant security risk as it allows unauthorized individuals to gain control over an administrator account, potentially leading to unauthorized access and malicious activities.
Technical Details of CVE-2021-20860
This section delves into the specifics related to the vulnerability.
Vulnerability Description
The CSRF flaw in ELECOM LAN routers lets attackers exploit authentication mechanisms to impersonate administrators, granting unauthorized control over the system.
Affected Systems and Versions
ELECOM LAN routers are impacted by this vulnerability across various firmware versions, such as WRC-1167GST2, WRC-2533GS2-B, WRC-1750GS, and others listed above.
Exploitation Mechanism
By manipulating HTTP requests, a remote authenticated attacker can trick an administrator into unintentionally executing unauthorized commands.
Mitigation and Prevention
Protecting systems from the CVE-2021-20860 vulnerability is crucial for maintaining security.
Immediate Steps to Take
Ensure to update the ELECOM LAN router firmware to the latest unaffected version to mitigate the CSRF risk.
Long-Term Security Practices
Implement network segregation, access control measures, and regular security audits to enhance overall cybersecurity.
Patching and Updates
Stay informed about security patches and updates released by ELECOM CO.,LTD. to address vulnerabilities and enhance the security posture of LAN routers.