CVE-2021-26123 : Security Advisory and Response

LivingLogic XIST4C before 0.107.8 is vulnerable to a cross-site scripting (XSS) attack through specific login pages, allowing malicious actors to execute unauthorized script codes.

Understanding CVE-2021-26123

This CVE describes a security flaw in LivingLogic XIST4C versions prior to 0.107.8 that enables attackers to conduct XSS attacks via login.htm, login.wihtm, or login-form.htm pages.

What is CVE-2021-26123?

CVE-2021-26123 relates to a vulnerability in LivingLogic XIST4C, where an attacker can inject malicious scripts into the specified login pages to potentially steal sensitive information or take control of the user's session.

The Impact of CVE-2021-26123

An exploitation of this vulnerability could lead to unauthorized access to user sessions, data theft, account compromise, and the potential for further attacks on affected systems. It poses a significant risk to the confidentiality and integrity of user data.

Technical Details of CVE-2021-26123

This section will cover the technical aspects of the vulnerability.

Vulnerability Description

LivingLogic XIST4C before version 0.107.8 allows for XSS attacks through the login.htm, login.wihtm, or login-form.htm pages, potentially exposing users to cross-site scripting threats.

Affected Systems and Versions

The vulnerability impacts all versions of LivingLogic XIST4C prior to 0.107.8, making them susceptible to XSS attacks through the specified login pages.

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious scripts into the vulnerable login pages, tricking users into executing these scripts and compromising their data.

Mitigation and Prevention

Protecting systems from CVE-2021-26123 requires immediate action and proactive security measures.

Immediate Steps to Take

Users and system administrators should update LivingLogic XIST4C to version 0.107.8 or newer to mitigate the XSS vulnerability. Additionally, regular monitoring for suspicious activities is recommended.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security assessments, and educating users about the risks of XSS attacks are essential for long-term security.

Patching and Updates

Staying current with software updates and security patches is crucial in safeguarding systems against known vulnerabilities like CVE-2021-26123.