CVE-2021-31862 : Vulnerability Insights and Analysis

SysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication.

Understanding CVE-2021-31862

This CVE-2021-31862 advisory highlights a cross-site scripting (XSS) vulnerability in SysAid version 20.4.74 that can be exploited through the stamp parameter in KeepAlive.jsp without requiring any authentication.

What is CVE-2021-31862?

CVE-2021-31862 is a security vulnerability found in SysAid version 20.4.74, allowing attackers to execute malicious scripts through the stamp parameter in KeepAlive.jsp without the need for authentication.

The Impact of CVE-2021-31862

This vulnerability can be exploited by remote attackers to conduct XSS attacks, potentially leading to unauthorized access, data theft, or other malicious activities.

Technical Details of CVE-2021-31862

This section delves into specific technical details surrounding CVE-2021-31862.

Vulnerability Description

The vulnerability in SysAid 20.4.74 enables attackers to inject and execute arbitrary scripts through the KeepAlive.jsp stamp parameter, posing a risk of XSS attacks.

Affected Systems and Versions

SysAid version 20.4.74 is confirmed to be affected by this vulnerability, while other versions may also be at risk if they use the same vulnerable parameter.

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the stamp parameter in the KeepAlive.jsp page to inject malicious scripts, which are then executed in the context of the victim's browser.

Mitigation and Prevention

To address CVE-2021-31862, users and administrators should take immediate action to mitigate risks and enhance security measures.

Immediate Steps to Take

Update SysAid to the latest version to patch the vulnerability.
Implement strict input validation to prevent script injection.

Long-Term Security Practices

Regularly monitor for security advisories and updates from SysAid.
Conduct security assessments and penetration testing to identify and remediate vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by SysAid to address CVE-2021-31862 and other potential vulnerabilities.