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How the mentioned CVE works:
This vulnerability stems from a flaw in the authentication mechanism for messages received on the cluster network. Liferay Portal nodes in a clustered environment communicate with each other for data synchronization and coordination. The affected versions fail to properly verify the origin and integrity of these inter-node messages. An attacker on the same network can craft a malicious serialized object and send it to a target Liferay node’s cluster listener port. Since the node does not authenticate the sender, it deserializes the untrusted data, treating it as a legitimate internal command. This can lead to the execution of arbitrary code with the same privileges as the Liferay application server, potentially compromising the entire portal instance.
DailyCVE Form:
Platform: Liferay Portal/DXP
Version: < 5.0.35
Vulnerability : Improper Authentication
Severity: Moderate
date: 2025-10-21
Prediction: 2025-11-04
What Undercode Say:
nmap -p 7800,7801 <cluster_ip_range>
// Malicious serialized object ObjectInputStream ois = new ObjectInputStream(maliciousPayload); Object rogueObject = ois.readObject();
echo "CVE-2025-XXXX affects cluster traffic."
How Exploit:
Craft malicious serialized object.
Send to cluster listener port.
Trigger deserialization gadget chain.
Execute arbitrary code.
Protection from this CVE:
Upgrade to patched versions.
Segment cluster network.
Implement firewall rules.
Impact:
Remote Code Execution
Data Breach
System Compromise
🎯Let’s Practice Exploiting & Learn Patching For Free:
Sources:
Reported By: github.com
Extra Source Hub:
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