CVE-2021-27758 : Security Advisory and Response

This article provides insights into CVE-2021-27758, a security vulnerability affecting HCL BigFix Inventory, leading to Cross-site Request Forgery issues that could result in account login problems.

Understanding CVE-2021-27758

CVE-2021-27758 is a security vulnerability disclosed on April 28, 2022, impacting HCL BigFix Inventory, specifically versions 9.x and 10.x. The vulnerability is related to Cross-site Request Forgery, affecting the login process.

What is CVE-2021-27758?

The vulnerability in CVE-2021-27758 pertains to a security flaw in the login form, resulting in Cross-site Request Forgery (CSRF) attacks. This exploit occurs when an attacker floods the login form, causing login failures and potentially locking the victim's account.

The Impact of CVE-2021-27758

With a CVSS base score of 4.3 (Medium severity), the vulnerability can lead to login issues due to CSRF attacks. The attack complexity is low, but it can disrupt user access to the system, posing a risk to account security.

Technical Details of CVE-2021-27758

The technical aspects of CVE-2021-27758 include the following:

Vulnerability Description

The vulnerability involves a flaw in the login form, allowing attackers to launch CSRF attacks, resulting in login failures and potential account lockouts.

Affected Systems and Versions

HCL BigFix Inventory versions 9.x and 10.x are impacted by this vulnerability, exposing users of these versions to CSRF attacks during the login process.

Exploitation Mechanism

The exploit involves flooding the login form with malicious login attempts, triggering the CSRF vulnerability and causing denial of service for legitimate users.

Mitigation and Prevention

To address CVE-2021-27758, consider the following steps:

Immediate Steps to Take

Monitor login attempts for unusual patterns to detect potential CSRF attacks.
Implement rate limiting on login attempts to prevent flooding attacks.

Long-Term Security Practices

Keep software and systems updated to mitigate known vulnerabilities.
Educate users about safe login practices and awareness of potential threats.

Patching and Updates

Stay informed about security updates from HCL Software for HCL BigFix Inventory to apply patches that address the CVE-2021-27758 vulnerability.