CVE-2025-52628: HCL AION CSRF Vulnerability via SameSite

CVE-2025-52628 Overview

HCL AION is affected by a Cookie with Insecure, Improper, or Missing SameSite vulnerability (CWE-1275). This security flaw allows cookies to be sent in cross-site requests, potentially increasing exposure to cross-site request forgery (CSRF) and related security risks. When the SameSite attribute is not properly configured on session cookies, browsers may include these cookies in cross-origin requests initiated by third-party websites, undermining the security boundary between different web origins.

Critical Impact

Attackers can potentially leverage this vulnerability to perform cross-site request forgery attacks against authenticated users, allowing unauthorized actions to be executed on behalf of victims who visit malicious websites while authenticated to HCL AION.

Affected Products

• HCL AION version 2.0

Discovery Timeline

• 2026-02-03 - CVE CVE-2025-52628 published to NVD
• 2026-02-04 - Last updated in NVD database

Technical Details for CVE-2025-52628

Vulnerability Analysis

This vulnerability stems from improper cookie attribute configuration in HCL AION version 2.0. The SameSite cookie attribute is a critical security control that restricts how cookies are sent with cross-site requests. When this attribute is missing, improperly configured, or set to an insecure value like None without the Secure flag, the browser's default behavior may allow cookies to be transmitted in cross-origin contexts.

The vulnerability requires user interaction and authenticated access, meaning an attacker would need to social engineer a victim into visiting a malicious page while they have an active session with the HCL AION application. The impact is limited to integrity and availability concerns without direct confidentiality impact, as the attacker cannot directly read protected data but can potentially trigger state-changing operations.

Root Cause

The root cause of CVE-2025-52628 is the absence or misconfiguration of the SameSite attribute on session cookies within HCL AION 2.0. Modern browsers implement the SameSite attribute to provide protection against CSRF attacks by controlling when cookies are sent with cross-site requests. Valid values include Strict (cookies only sent in same-site context), Lax (cookies sent with top-level navigations), and None (cookies sent in all contexts, requiring Secure flag).

When this attribute is missing or set incorrectly, the application loses an important layer of defense against cross-site request forgery attacks. While modern browsers have begun defaulting to SameSite=Lax when no attribute is specified, legacy browsers and certain configurations may still exhibit insecure behavior.

Attack Vector

The attack vector is network-based and requires both a low-privileged authenticated user and user interaction. An attacker would typically:

1. Craft a malicious webpage containing requests to the vulnerable HCL AION application
2. Entice an authenticated HCL AION user to visit the malicious page
3. The victim's browser would automatically include session cookies with the cross-site request due to missing SameSite restrictions
4. The HCL AION server would process the forged request as if it originated from the legitimate user

Since this is a cookie configuration vulnerability, the exploitation mechanism involves crafting HTML forms or JavaScript-initiated requests that target authenticated endpoints in the HCL AION application. The specific attack payload would depend on the functionality exposed by the application. For detailed technical information, refer to the HCL Software Knowledge Base Article.

Detection Methods for CVE-2025-52628

Indicators of Compromise

• Unusual cross-origin requests to HCL AION endpoints originating from external domains in server access logs
• Session cookies being transmitted without proper SameSite attribute restrictions visible in browser developer tools
• Unexpected state-changing operations performed without corresponding user-initiated navigation events
• Referrer headers showing external malicious domains for authenticated API calls

Detection Strategies

• Configure web application firewalls (WAF) to monitor for suspicious cross-origin request patterns targeting HCL AION endpoints
• Implement server-side CSRF token validation as a secondary defense layer and monitor for requests missing valid tokens
• Review HTTP response headers for Set-Cookie directives lacking the SameSite attribute using security scanning tools
• Enable detailed access logging to correlate request origins with user session activity

Monitoring Recommendations

• Deploy browser security policy monitoring to track cookie attributes across your web application infrastructure
• Implement Content Security Policy (CSP) reporting to detect potential cross-site request attempts
• Set up alerting for anomalous request patterns from authenticated sessions with mismatched referrer headers

How to Mitigate CVE-2025-52628

Immediate Actions Required

• Review the official security advisory from HCL and apply any available patches or configuration updates for AION version 2.0
• Audit current cookie configurations in HCL AION to identify cookies missing the SameSite attribute
• Implement additional CSRF protection mechanisms such as anti-CSRF tokens as a defense-in-depth measure
• Educate users about the risks of clicking links from untrusted sources while authenticated to enterprise applications

Patch Information

HCL has published information regarding this vulnerability. System administrators should consult the HCL Software Knowledge Base Article for specific patch availability, remediation steps, and updated software versions that address this cookie configuration issue.

Workarounds

• Configure reverse proxy or load balancer to inject proper SameSite attributes on Set-Cookie headers if application-level patching is not immediately possible
• Implement strict referrer validation on the server side to reject requests with unexpected Origin or Referer headers
• Deploy a web application firewall with CSRF protection rules to filter suspicious cross-origin requests
• Consider restricting access to HCL AION to trusted network segments while awaiting a permanent fix

# Example: Apache mod_headers configuration to add SameSite attribute
# Add to httpd.conf or .htaccess for HCL AION virtual host
Header edit Set-Cookie ^(.*)$ "$1; SameSite=Lax; Secure"

# Example: Nginx configuration to modify cookie headers
# Add to server or location block
proxy_cookie_flags ~ httponly secure samesite=lax;