CVE-2025-8048
📋 TL;DR
This path traversal vulnerability in OpenText Flipper allows attackers to access arbitrary files on the server by manipulating file path parameters. It affects Flipper version 3.1.2 and could expose sensitive system files to unauthorized users.
💻 Affected Systems
- OpenText Flipper
📦 What is this software?
Flipper by Opentext
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise through retrieval of sensitive configuration files, credentials, or system files leading to lateral movement.
Likely Case
Unauthorized access to sensitive documents, configuration files, or user data stored on the server.
If Mitigated
Limited file access restricted by proper input validation and file system permissions.
🎯 Exploit Status
Requires understanding of path traversal techniques but no authentication needed once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for patched version
Vendor Advisory: https://support.opentext.com/csm?id=ot_kb_unauthenticated&sysparm_article=KB0850531
Restart Required: No
Instructions:
1. Review vendor advisory for patched version. 2. Apply vendor-provided patch or upgrade to fixed version. 3. Validate fix by testing path traversal attempts.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side validation to reject file paths containing directory traversal sequences
File Access Restriction
allConfigure web server to restrict file access to specific directories only
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block path traversal patterns
- Restrict network access to Flipper instances and implement strict authentication requirements
🔍 How to Verify
Check if Vulnerable:
Attempt to access files using path traversal sequences like ../../etc/passwd via the document ID parameterCheck Version:
Check Flipper administration interface or configuration files for version informationVerify Fix Applied:
Test same path traversal attempts after patch - should return error or be blocked📡 Detection & Monitoring
Log Indicators:
- Multiple failed attempts to access files with ../ sequences
- Unusual file access patterns from single IP
Network Indicators:
- HTTP requests containing ../, ..\, or similar traversal patterns in parameters
SIEM Query:
source="web_logs" AND (uri="*../*" OR params="*../*")