CVE-2025-9801
📋 TL;DR
This CVE describes a path traversal vulnerability in SimStudioAI sim software where manipulation of the filePath argument allows attackers to access files outside the intended directory. Remote exploitation is possible, potentially affecting all systems running vulnerable versions of SimStudioAI sim. The vulnerability has been publicly disclosed and may be actively exploited.
💻 Affected Systems
- SimStudioAI sim
📦 What is this software?
Sim by Sim
⚠️ Risk & Real-World Impact
Worst Case
Remote attackers could read sensitive system files, potentially including configuration files, credentials, or other sensitive data, leading to information disclosure and potential further system compromise.
Likely Case
Attackers accessing application configuration files, source code, or other files within the application's directory structure, potentially enabling further attacks.
If Mitigated
With proper input validation and file access controls, impact is limited to attempted attacks being blocked with appropriate logging.
🎯 Exploit Status
The exploit has been publicly disclosed according to the CVE description, though specific details about authentication requirements are not provided. Path traversal vulnerabilities typically require some level of access to the vulnerable interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Commit 45372aece5e05e04b417442417416a52e90ba174 and later
Vendor Advisory: https://github.com/simstudioai/sim/commit/45372aece5e05e04b417442417416a52e90ba174
Restart Required: No
Instructions:
1. Update to commit 45372aece5e05e04b417442417416a52e90ba174 or later. 2. If using package management, update to the latest available version. 3. Verify the fix by checking the commit hash or version.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement server-side validation to reject filePath arguments containing directory traversal sequences (../, ..\, etc.)
Implement input validation in application code to sanitize filePath parameters
File Access Restrictions
allConfigure the application to run with minimal file system permissions and restrict access to sensitive directories
chmod 750 /path/to/application/directory
set appropriate file system ACLs
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block path traversal patterns in requests
- Isolate the application in a container or VM with restricted file system access
🔍 How to Verify
Check if Vulnerable:
Check if your SimStudioAI sim version is earlier than commit 45372aece5e05e04b417442417416a52e90ba174Check Version:
git log --oneline -1 (if installed from source) or check application version outputVerify Fix Applied:
Verify the current commit hash matches or is later than 45372aece5e05e04b417442417416a52e90ba174📡 Detection & Monitoring
Log Indicators:
- Failed file access attempts with path traversal patterns
- Unusual file access patterns outside expected directories
- HTTP requests containing ../ or ..\ sequences
Network Indicators:
- HTTP requests with suspicious filePath parameters containing traversal sequences
SIEM Query:
source="application_logs" AND ("../" OR "..\\" OR "%2e%2e%2f" OR "%2e%2e%5c")🔗 References
- https://github.com/simstudioai/sim/commit/45372aece5e05e04b417442417416a52e90ba174
- https://github.com/simstudioai/sim/issues/959
- https://github.com/simstudioai/sim/issues/959#issue-3320697951
- https://github.com/simstudioai/sim/issues/959#issuecomment-3221311557
- https://vuldb.com/?ctiid.322116
- https://vuldb.com/?id.322116
- https://vuldb.com/?submit.641130
