CVE-2021-27250 : What You Need to Know

This CVE-2021-27250 article provides details about a vulnerability in the D-Link DAP-2020 v1.01rc001 Wi-Fi access points.

Understanding CVE-2021-27250

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations without requiring authentication.

What is CVE-2021-27250?

Network-adjacent attackers can exploit the vulnerability to access sensitive information on affected D-Link DAP-2020 v1.01rc001 Wi-Fi access points through improper validation of user-supplied paths.

The Impact of CVE-2021-27250

The vulnerability could lead to the disclosure of stored credentials and further compromise.

Technical Details of CVE-2021-27250

The vulnerability lies in the CGI script processing of the D-Link DAP-2020 v1.01rc001 Wi-Fi access points.

Vulnerability Description

The flaw occurs when parsing the errorpage request parameter without proper validation, allowing attackers to disclose sensitive information.

Affected Systems and Versions

D-Link DAP-2020 with version v1.01rc001 is affected by this vulnerability.

Exploitation Mechanism

Attackers leverage the improper validation of user-supplied paths to access stored credentials.

Mitigation and Prevention

To address CVE-2021-27250, immediate steps should be taken to enhance security and prevent unauthorized access.

Immediate Steps to Take

Enable additional security measures and restrict access to vulnerable systems.

Long-Term Security Practices

Regular security assessments and updates should be conducted to prevent similar vulnerabilities.

Patching and Updates

Apply patches and firmware updates provided by D-Link to mitigate the risk of exploitation.