CVE-2024-28752
📋 TL;DR
This CVE describes a Server-Side Request Forgery (SSRF) vulnerability in Apache CXF's Aegis DataBinding component. It allows attackers to make unauthorized HTTP requests from the vulnerable server to internal or external systems. Only users of Apache CXF with Aegis DataBinding configured are affected; other data bindings are not vulnerable.
💻 Affected Systems
- Apache CXF
📦 What is this software?
Cxf by Apache
Cxf by Apache
Cxf by Apache
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access internal services, exfiltrate sensitive data, or pivot to attack other internal systems from the vulnerable server.
Likely Case
Information disclosure from internal services, potential data exfiltration, or denial of service through resource exhaustion.
If Mitigated
Limited impact if network segmentation restricts outbound connections and internal services require authentication.
🎯 Exploit Status
Exploitation requires sending crafted requests to vulnerable web services; no authentication needed if services are exposed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apache CXF 4.0.4, 3.6.3, or 3.5.8
Vendor Advisory: https://cxf.apache.org/security-advisories.data/CVE-2024-28752.txt
Restart Required: Yes
Instructions:
1. Identify Apache CXF version. 2. Upgrade to patched version (4.0.4, 3.6.3, or 3.5.8). 3. Restart affected services. 4. Verify upgrade with version check.
🔧 Temporary Workarounds
Switch to Default Databinding
allReplace Aegis DataBinding with default databinding or other non-vulnerable bindings.
Modify web service configuration to use JAXB or other supported databinding instead of Aegis.
Network Restriction
allRestrict outbound network access from vulnerable servers to only necessary destinations.
Configure firewall rules to block outbound HTTP/HTTPS from affected servers except to whitelisted destinations.
🧯 If You Can't Patch
- Implement strict input validation to reject URLs in parameters.
- Deploy web application firewall (WAF) rules to detect and block SSRF patterns.
🔍 How to Verify
Check if Vulnerable:
Check Apache CXF version and verify if Aegis DataBinding is configured in web service endpoints.Check Version:
Check application logs, configuration files, or use 'java -jar cxf-version.jar' if available.Verify Fix Applied:
Confirm version is 4.0.4, 3.6.3, or 3.5.8 and test with SSRF payloads to ensure requests are blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from server to internal IPs or domains
- Requests with URL parameters to unexpected destinations
Network Indicators:
- HTTP traffic from server to internal services not typically accessed
- Multiple failed connection attempts to internal IPs
SIEM Query:
source_ip=vulnerable_server AND (dest_ip=internal_range OR dest_domain=unexpected) AND protocol=HTTP🔗 References
- http://www.openwall.com/lists/oss-security/2024/03/14/3
- https://cxf.apache.org/security-advisories.data/CVE-2024-28752.txt
- https://security.netapp.com/advisory/ntap-20240517-0001/
- http://www.openwall.com/lists/oss-security/2024/03/14/3
- https://cxf.apache.org/security-advisories.data/CVE-2024-28752.txt
- https://security.netapp.com/advisory/ntap-20240517-0001/
