CVE-2021-23857 : Vulnerability Insights and Analysis

This article provides detailed information about CVE-2021-23857, a critical vulnerability related to logging in with a hash instead of a password.

Understanding CVE-2021-23857

CVE-2021-23857, titled 'Login with hash,' is a security vulnerability that allows attackers to log in by using the hash of a password rather than the password itself. When combined with another related CVE, this vulnerability can lead to unauthorized access to the system.

What is CVE-2021-23857?

The vulnerability in CVE-2021-23857 enables malicious actors to bypass traditional password-based authentication by using the password hash. This method poses a serious threat to the confidentiality and integrity of the affected systems.

The Impact of CVE-2021-23857

With a high base severity score of 10, CVE-2021-23857 has a critical impact on affected systems, leading to unauthorized access and potential compromise of sensitive information. The attack vector is via a network with low attack complexity.

Technical Details of CVE-2021-23857

The technical details of CVE-2021-23857 include:

Vulnerability Description

The flaw allows the client to log in using the hash of the password instead of the actual password, facilitating unauthorized access to the system.

Affected Systems and Versions

Products affected include IndraMotion MLC L25, L45, L65, L75, L85, XM21, XM22, XM41, and XM42 IndraMotion XLC, with version 12 VRS.

Exploitation Mechanism

The exploitation of CVE-2021-23857 involves utilizing the hash of the password to gain access to the system, exploiting the security weakness in the login routine.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-23857, consider the following measures:

Immediate Steps to Take

Apply security patches and updates provided by the vendor.
Implement strong password policies and multifactor authentication.
Monitor login attempts and enforce account lockout policies.

Long-Term Security Practices

Regularly review and update security protocols to address new threats.
Conduct security training for employees to enhance awareness of best practices.
Perform security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Stay informed about security advisories from the vendor and promptly apply patches to eliminate the vulnerability.