CVE-2024-47086
📋 TL;DR
This vulnerability allows authenticated attackers to bypass OTP verification for other user accounts in Apex Softcell LD DP Back Office by manipulating OTP validation in API endpoints. Organizations using this software with OTP authentication enabled are affected.
💻 Affected Systems
- Apex Softcell LD DP Back Office
📦 What is this software?
Ld Dp Back Office by Apexsoftcell
Ld Geo by Apexsoftcell
⚠️ Risk & Real-World Impact
Worst Case
Attackers could gain unauthorized access to any user account, potentially leading to data theft, privilege escalation, or complete system compromise.
Likely Case
Attackers bypass OTP for targeted accounts to access sensitive data or perform unauthorized actions.
If Mitigated
With proper network segmentation and monitoring, impact limited to isolated systems with quick detection.
🎯 Exploit Status
Exploitation requires authenticated access and understanding of API endpoints; manipulation of OTP validation is straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in reference; check vendor advisory
Vendor Advisory: https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01&VLCODE=CIVN-2024-0296
Restart Required: Yes
Instructions:
1. Review vendor advisory for patch details. 2. Apply the provided patch to affected systems. 3. Restart services as required. 4. Verify OTP validation is properly implemented post-patch.
🔧 Temporary Workarounds
Disable OTP Authentication
allTemporarily disable OTP-based authentication in affected API endpoints to prevent exploitation.
Specific commands depend on software configuration; consult vendor documentation.
Restrict API Access
allLimit access to vulnerable API endpoints using network controls or authentication proxies.
Use firewall rules to restrict IP access to API endpoints.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected systems from critical assets.
- Enhance monitoring and logging for OTP validation failures and API endpoint access.
🔍 How to Verify
Check if Vulnerable:
Test OTP validation in API endpoints by attempting authentication with arbitrary OTP values; if successful, system is vulnerable.Check Version:
Check software version via vendor-specific commands or configuration files; details not provided in reference.Verify Fix Applied:
After patching, repeat OTP validation tests; ensure arbitrary OTP values are rejected and proper validation occurs.📡 Detection & Monitoring
Log Indicators:
- Multiple failed OTP validations followed by successful authentication with unusual OTP values
- API requests to OTP endpoints with manipulated parameters
Network Indicators:
- Unusual patterns of API calls to authentication endpoints
- Traffic spikes to OTP validation APIs
SIEM Query:
source="api_logs" AND (event="otp_validation" AND result="success") AND otp_value NOT IN [expected_values]