CVE-2025-5321

6.3 MEDIUM

📋 TL;DR

This critical vulnerability in aimhubio aim allows remote attackers to execute arbitrary code through improper input validation in the RestrictedPythonQuery function. Attackers can gain elevated privileges on affected systems. All users running aim versions up to 3.29.1 are affected.

💻 Affected Systems

Products:
  • aimhubio aim
Versions: up to 3.29.1
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Affects the run_view Object Handler component. All deployments with the vulnerable component are affected regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attackers to execute arbitrary code with elevated privileges, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.

🟠

Likely Case

Unauthorized access to sensitive data, privilege escalation within the aim application, and potential lateral movement within the network.

🟢

If Mitigated

Limited impact with proper network segmentation and least privilege principles, potentially only affecting the aim application instance.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploit code is publicly available on GitHub gist. Remote exploitation is possible without authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: None available

Restart Required: Yes

Instructions:

1. Monitor aimhubio GitHub repository for security updates
2. Apply patch when available
3. Restart aim services after patching

🔧 Temporary Workarounds

Network Access Restriction

linux

Restrict network access to aim services to trusted IP addresses only

iptables -A INPUT -p tcp --dport [aim_port] -s [trusted_ip] -j ACCEPT
iptables -A INPUT -p tcp --dport [aim_port] -j DROP

Disable Vulnerable Component

all

Disable or restrict access to the run_view Object Handler if not required

🧯 If You Can't Patch

  • Isolate affected systems in a separate network segment with strict firewall rules
  • Implement application-level WAF rules to block suspicious queries to the RestrictedPythonQuery endpoint

🔍 How to Verify

Check if Vulnerable:

Check aim version: aim --version. If version is 3.29.1 or lower, system is vulnerable.

Check Version:

aim --version

Verify Fix Applied:

After patching, verify version is above 3.29.1 and test RestrictedPythonQuery functionality with safe inputs.

📡 Detection & Monitoring

Log Indicators:

  • Unusual queries to /aim/storage/query.py
  • Multiple failed authentication attempts followed by successful RestrictedPythonQuery calls
  • Python code execution logs from unexpected sources

Network Indicators:

  • Unusual outbound connections from aim servers
  • Traffic to known malicious IPs from aim servers
  • Abnormal query patterns to RestrictedPythonQuery endpoint

SIEM Query:

source="aim.log" AND ("RestrictedPythonQuery" OR "Abfrage") AND status=200

🔗 References

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