CVE-2023-26454
📋 TL;DR
This SQL injection vulnerability in the imageconverter service allows attackers with adjacent network access to execute arbitrary SQL queries. It affects Open-Xchange AppSuite installations where the vulnerable service is exposed. Successful exploitation could lead to database compromise and data manipulation.
💻 Affected Systems
- Open-Xchange AppSuite
📦 What is this software?
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
Open Xchange Appsuite by Open Xchange
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including data exfiltration, modification, or deletion; potential privilege escalation within the database context.
Likely Case
Data leakage from the imageconverter service database, potential service disruption, and unauthorized data access.
If Mitigated
Limited impact due to network segmentation and proper input validation; failed exploitation attempts logged for monitoring.
🎯 Exploit Status
Requires adjacent network access to imageconverter service; SQL injection via image metadata requests.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patch release 6243 (7.10.6)
Vendor Advisory: https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0004.json
Restart Required: Yes
Instructions:
1. Download patch release 6243 from Open-Xchange. 2. Apply the patch following vendor documentation. 3. Restart affected services. 4. Verify patch application.
🔧 Temporary Workarounds
Network Segmentation
linuxRestrict access to imageconverter service to only necessary networks
# Example firewall rule (adjust for your environment)
iptables -A INPUT -p tcp --dport [imageconverter_port] -s [trusted_network] -j ACCEPT
iptables -A INPUT -p tcp --dport [imageconverter_port] -j DROP
🧯 If You Can't Patch
- Implement strict network access controls to limit imageconverter service exposure
- Enable detailed logging and monitoring for SQL injection attempts in image metadata requests
🔍 How to Verify
Check if Vulnerable:
Check AppSuite version: if before 7.10.6 patch 6243 and imageconverter service is exposed, system is vulnerable.Check Version:
Check Open-Xchange AppSuite version through admin interface or configuration files per vendor documentation.Verify Fix Applied:
Verify version is 7.10.6 with patch 6243 applied and test that SQL injection attempts in image metadata are properly rejected.📡 Detection & Monitoring
Log Indicators:
- SQL syntax errors in imageconverter logs
- Unusual database queries from imageconverter service
- Failed authentication attempts to image metadata endpoints
Network Indicators:
- Unusual SQL patterns in HTTP requests to imageconverter endpoints
- Multiple failed requests to image metadata API
SIEM Query:
source="imageconverter.log" AND ("SQL" OR "syntax" OR "error")🔗 References
- https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0004.json
- https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6243_7.10.6_2023-08-01.pdf
- https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2023/oxas-adv-2023-0004.json
- https://software.open-xchange.com/products/appsuite/doc/Release_Notes_for_Patch_Release_6243_7.10.6_2023-08-01.pdf
