CVE-2021-3706 Explained : Impact and Mitigation
Learn about CVE-2021-3706, a high-severity vulnerability in pi-hole/adminlte that exposes sensitive cookie data without the 'HttpOnly' flag. Find out the impact, affected versions, and mitigation steps.
This article provides detailed information about CVE-2021-3706, a vulnerability in pi-hole/adminlte that allows sensitive cookie data to be accessed without the 'HttpOnly' flag.
Understanding CVE-2021-3706
CVE-2021-3706 is a security flaw in the pi-hole/adminlte software that can lead to the exposure of sensitive cookies due to the absence of the 'HttpOnly' flag.
What is CVE-2021-3706?
The vulnerability in pi-hole/adminlte, tracked as CVE-2021-3706, allows attackers to access sensitive cookie information without the necessary security controls.
The Impact of CVE-2021-3706
With a CVSS base score of 7.4, this vulnerability has a high impact on confidentiality, integrity, and availability. Attackers can exploit this issue locally with no privileges required.
Technical Details of CVE-2021-3706
CVE-2021-3706 exposes a vulnerability where sensitive cookies lack the 'HttpOnly' flag, making them accessible to potential attackers.
Vulnerability Description
The vulnerability enables attackers to retrieve sensitive cookie data without the protection of the 'HttpOnly' flag, compromising user privacy and security.
Affected Systems and Versions
pi-hole/adminlte versions less than 5.6 are affected by this vulnerability, with unspecified versions being custom and vulnerable.
Exploitation Mechanism
Attackers can exploit this vulnerability locally with high attack complexity. No user interaction or special privileges are needed, and the impact on system availability is severe.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-3706, immediate actions and long-term security practices should be implemented.
Immediate Steps to Take
Users are advised to update pi-hole/adminlte to version 5.6 or newer, ensuring that all sensitive cookies have the necessary 'HttpOnly' flag for added protection.
Long-Term Security Practices
Incorporate secure coding practices to prevent similar vulnerabilities in the future, conduct regular security assessments, and stay informed about software updates and security patches.
Patching and Updates
Stay vigilant for security advisories and updates from pi-hole to address vulnerabilities promptly, reducing the risk of exploitation.