CVE-2020-11859
📋 TL;DR
CVE-2020-11859 is an improper input validation vulnerability in OpenText iManager that allows cross-site scripting (XSS) attacks. Attackers can inject malicious scripts into web pages viewed by other users, potentially stealing session cookies or performing actions on behalf of victims. This affects iManager installations before version 3.2.3.
💻 Affected Systems
- OpenText iManager
📦 What is this software?
Imanager by Microfocus
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, hijack sessions, install backdoors, or pivot to other systems in the network.
Likely Case
Attackers steal session cookies to gain unauthorized access to iManager, potentially accessing sensitive directory information or modifying configurations.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before execution, preventing exploitation.
🎯 Exploit Status
XSS vulnerabilities typically require user interaction (clicking a malicious link) but exploitation is straightforward once the vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.3
Vendor Advisory: https://www.netiq.com/documentation/imanager-32/imanager323_releasenotes/data/imanager323_releasenotes.html
Restart Required: Yes
Instructions:
1. Download iManager 3.2.3 from official OpenText channels. 2. Backup current configuration and data. 3. Stop iManager service. 4. Install the update following vendor documentation. 5. Restart iManager service. 6. Verify functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement custom input validation to sanitize user inputs before processing.
Web Application Firewall
allDeploy WAF with XSS protection rules to filter malicious requests.
🧯 If You Can't Patch
- Restrict network access to iManager to trusted IP addresses only
- Implement Content Security Policy headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check iManager version via web interface or configuration files. If version is below 3.2.3, system is vulnerable.Check Version:
Check web interface or consult iManager configuration/installation logsVerify Fix Applied:
Verify version is 3.2.3 or higher and test input fields for proper sanitization.📡 Detection & Monitoring
Log Indicators:
- Unusual script tags in HTTP requests
- Multiple failed input validation attempts
- Suspicious characters in URL parameters
Network Indicators:
- HTTP requests containing script tags or JavaScript code in parameters
- Unusual traffic patterns to iManager endpoints
SIEM Query:
source="iManager" AND (http_request CONTAINS "<script>" OR http_request CONTAINS "javascript:")