CVE-2025-2622
📋 TL;DR
A critical deserialization vulnerability in aizuda snail-job 1.4.0 allows remote attackers to execute arbitrary code by manipulating the nodeExpression parameter in the Workflow-Task Management Module. This affects all systems running the vulnerable version of snail-job with the workflow component exposed. Attackers can exploit this without authentication to potentially gain full control of affected systems.
💻 Affected Systems
- aizuda snail-job
📦 What is this software?
Snail Job by Aizuda
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, ransomware deployment, or use as a foothold for lateral movement within the network.
Likely Case
Remote code execution allowing attackers to install backdoors, steal sensitive data, or disrupt workflow operations.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to vulnerable endpoints.
🎯 Exploit Status
Exploit details have been publicly disclosed on the project's issue tracker, making exploitation straightforward for attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://gitee.com/aizuda/snail-job/issues/IBSQ24
Restart Required: Yes
Instructions:
1. Monitor the official snail-job repository for security updates. 2. Apply any available patches immediately. 3. Restart the snail-job service after patching.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to snail-job endpoints to only trusted IP addresses or internal networks.
Use firewall rules to block external access to snail-job ports (e.g., iptables -A INPUT -p tcp --dport <snail-job-port> -s <trusted-ips> -j ACCEPT)
Disable Vulnerable Module
allTemporarily disable the Workflow-Task Management Module if not essential.
Consult snail-job documentation for module disablement procedures
🧯 If You Can't Patch
- Implement strict network segmentation to isolate snail-job instances from critical systems
- Deploy web application firewalls (WAF) with rules to block deserialization attacks
🔍 How to Verify
Check if Vulnerable:
Check if running snail-job version 1.4.0 and verify the Workflow-Task Management Module is enabled.Check Version:
Check snail-job configuration files or admin interface for version informationVerify Fix Applied:
Verify version is updated beyond 1.4.0 and test the vulnerable endpoint with safe payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual requests to /snail-job/workflow/check-node-expression with serialized data patterns
- Error logs containing deserialization exceptions
Network Indicators:
- HTTP POST requests to vulnerable endpoint with unusual parameter values
- Outbound connections from snail-job server to unknown external IPs
SIEM Query:
source="snail-job" AND (url_path="/workflow/check-node-expression" OR message="*deserialization*")