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CVE Vulnerability Database
Vulnerability Database/CVE-2025-52633

CVE-2025-52633: HCL AION Information Disclosure Flaw

CVE-2025-52633 is an information disclosure vulnerability in HCL AION 2.0 that stores sensitive session data in persistent cookies, risking unauthorized access. This article covers technical details, impact, and mitigation.

Published: February 6, 2026

CVE-2025-52633 Overview

HCL AION is affected by a Permanent Cookie Containing Sensitive Session Information vulnerability. The application stores sensitive session data in persistent cookies, which may increase the risk of unauthorized access if the cookies are intercepted or compromised. This vulnerability is classified under CWE-539 (Use of Persistent Cookies Containing Sensitive Information).

Critical Impact

Sensitive session information stored in persistent cookies could be intercepted or compromised, potentially leading to unauthorized access to user sessions and information disclosure.

Affected Products

  • HCL AION version 2.0

Discovery Timeline

  • February 3, 2026 - CVE CVE-2025-52633 published to NVD
  • February 4, 2026 - Last updated in NVD database

Technical Details for CVE-2025-52633

Vulnerability Analysis

This vulnerability stems from improper session management practices within HCL AION 2.0. The application utilizes persistent cookies to store sensitive session information rather than using secure, session-scoped cookies that expire when the browser is closed. Persistent cookies remain stored on the user's system even after the browser session ends, creating a prolonged window of opportunity for attackers.

The network-based attack vector requires specific conditions to exploit: an attacker would need to intercept or gain access to the stored cookies through various means such as man-in-the-middle attacks, cross-site scripting in related applications, or physical access to the victim's machine. Due to the high attack complexity and requirement of high privileges, successful exploitation requires significant effort but could still result in limited confidentiality and availability impact.

Root Cause

The root cause of this vulnerability is the improper implementation of session cookie attributes in HCL AION 2.0. Instead of setting cookies with appropriate expiration policies (session cookies) and secure flags, the application sets persistent cookies that contain sensitive session data. This violates security best practices outlined in CWE-539, which warns against storing sensitive information in persistent cookies due to their extended lifespan on client systems.

Attack Vector

The attack vector for this vulnerability is network-based, though exploitation requires a combination of high privileges, high attack complexity, and user interaction. An attacker could potentially exploit this vulnerability through the following methods:

Cookie Theft via Physical Access: If an attacker gains physical access to a victim's workstation, they could extract persistent cookies from the browser's cookie storage and use them to impersonate the legitimate user.

Cookie Extraction through Browser Vulnerabilities: Malicious browser extensions or separate vulnerabilities in the browser could be used to extract the persistent session cookies.

Network Interception: In scenarios where HTTPS is not properly enforced or configured, cookies could potentially be intercepted during transmission.

Detection Methods for CVE-2025-52633

Indicators of Compromise

  • Unusual session activity or access patterns from unexpected geographic locations or IP addresses
  • Multiple concurrent sessions for a single user account that may indicate cookie theft
  • Detection of session cookies being used after extended periods of user inactivity

Detection Strategies

  • Monitor authentication logs for anomalous login patterns and session reuse
  • Implement session fingerprinting to detect cookie theft and replay attacks
  • Review browser cookie storage for HCL AION cookies with extended expiration dates
  • Enable audit logging for session creation and validation events within HCL AION

Monitoring Recommendations

  • Configure SIEM rules to alert on suspicious session activity patterns
  • Monitor for multiple sessions from different IP addresses using the same session token
  • Implement periodic session validation checks to detect stolen cookie usage
  • Review access logs for sessions that persist beyond normal operational hours

How to Mitigate CVE-2025-52633

Immediate Actions Required

  • Review and audit current HCL AION cookie configurations and session management settings
  • Implement additional session validation mechanisms such as IP binding or user-agent validation
  • Enforce multi-factor authentication to reduce the impact of potential session compromise
  • Educate users about the risks of accessing HCL AION from shared or public computers

Patch Information

HCL Software has published a security advisory regarding this vulnerability. Administrators should consult the HCL Software Security Advisory for official patch information and remediation guidance. Contact HCL Support for the latest security updates and version upgrades that address this cookie handling vulnerability.

Workarounds

  • Configure browsers to clear cookies on exit for systems accessing HCL AION
  • Implement network-level controls to restrict access to HCL AION from trusted networks only
  • Deploy web application firewall rules to detect and block suspicious cookie-based attacks
  • Enable session timeout policies to limit the validity window of session cookies

The vulnerability can be mitigated by implementing secure cookie handling practices. Configure cookie attributes to include Secure, HttpOnly, and SameSite flags, and ensure session cookies have appropriate expiration policies. Additionally, consider implementing server-side session management with short-lived tokens that are validated on each request.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

  • Vulnerability Details
  • TypeInformation Disclosure

  • Vendor/TechHcl Aion

  • SeverityLOW

  • CVSS Score3.1

  • EPSS Probability0.03%

  • Known ExploitedNo
  • CVSS Vector
  • CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:L
  • Impact Assessment
  • ConfidentialityHigh
  • IntegrityNone
  • AvailabilityLow
  • CWE References
  • CWE-539
  • Technical References
  • HCL Software Security Advisory
  • Related CVEs
  • CVE-2025-52642: HCL AION Information Disclosure Flaw

  • CVE-2025-52648: HCL AION Image Integrity Vulnerability

  • CVE-2025-52623: HCL AION Information Disclosure Flaw

  • CVE-2025-52631: HCL AION HSTS Header Vulnerability
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