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high·Product Based Web Vulnerabilities·Updated Jan 3, 2024

CVE-2021-3297 Scanner

CVE-2021-3297 scanner - Authentication Bypass vulnerability in Zyxel NBG2105

Est. Time~10 seconds
Scan TypeSingle Scan
Targetsdomain, ipv4, subdomain
CostFree
0
Times Used
by S4E users
0
Assets Scanned
domains & IPs
0
Vulnerabilities Found
confirmed findings
References
CVECVE-2021-3297
7.8
CVSS

On Zyxel NBG2105 V1.00(AAGU.2)C0 devices, setting the login cookie to 1 provides administrator access.

Attack Vector
-
Privileges Req.
-
User Interaction
-
Affected
n/aby n/a
n/a
Updated Aug 19, 2026View on NVD →
Detail

The Zyxel NBG2105 is a wireless router designed for home and small office use. This router offers a variety of features, including wireless connectivity and network security. With its compact design, the Zyxel NBG2105 is a perfect solution for those who require a reliable wireless router in their workspace.

However, the Zyxel NBG2105 has recently been affected by the CVE-2021-3297 vulnerability. This vulnerability allows attackers to access the administrator account by setting the login cookie to 1. This flaw allows malicious actors to gain unauthorized access to the router, compromising its security.

If exploited, the CVE-2021-3297 vulnerability can lead to a wide range of cyber threats, including network infiltration, data theft, and identity theft. This vulnerability can also enable attackers to take complete control over your router, compromising all the devices connected to your network. Therefore, it is crucial to take appropriate measures to protect your router against this vulnerability.

Thanks to the s4e.io platform's pro features, users can easily and quickly learn about vulnerabilities in their digital assets. By using this platform, you can stay informed about the latest security threats and take appropriate measures to protect your digital assets from cyber attacks. Overall, it is essential to keep your router secure by following appropriate cybersecurity measures to prevent unauthorized access and keep your digital assets safe.

 

REFERENCES

Solution Advice

To secure your router against the CVE-2021-3297 vulnerability, you should consider taking the following precautions:

  • Regularly update your router firmware to ensure that the latest security measures are in place.
  • Disable remote management access to your router to prevent unauthorized access from external sources.
  • Use a strong and complex password for your router's administrator account to prevent unauthorized access.
  • Check your router's logs regularly to identify any suspicious activity, such as unauthorized login attempts.
  • Monitor the devices connected to your router to ensure that no malware infects your network.

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