CVE-2025-70085
📋 TL;DR
This CVE describes a stack buffer overflow vulnerability in OpenSatKit 2.2.1's file management component. Attackers can exploit this by providing long filenames to trigger memory corruption, potentially leading to remote code execution. Systems running OpenSatKit 2.2.1 with the vulnerable file.c functions are affected.
💻 Affected Systems
- OpenSatKit
📦 What is this software?
Opensatkit by Opensatkit
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with full system compromise, allowing attackers to execute arbitrary commands, steal data, or pivot to other systems.
Likely Case
Denial of service through application crashes or limited code execution within the application's context.
If Mitigated
Application crash without code execution if memory protections like ASLR are enabled and properly configured.
🎯 Exploit Status
Exploitation requires triggering specific file operations with crafted long filenames. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub releases for versions after 2.2.1
Vendor Advisory: https://github.com/OpenSatKit/OpenSatKit
Restart Required: No
Instructions:
1. Check OpenSatKit GitHub for latest release. 2. Update to patched version. 3. Rebuild and redeploy the application.
🔧 Temporary Workarounds
Input Validation
allImplement filename length restrictions before processing file operations
Implement validation to reject filenames longer than OS_MAX_PATH_LEN
Memory Protection
allEnable stack protection mechanisms like stack canaries and ASLR
Compile with -fstack-protector-all and ensure ASLR is enabled
🧯 If You Can't Patch
- Restrict file operations to trusted users only
- Implement network segmentation to isolate OpenSatKit systems
🔍 How to Verify
Check if Vulnerable:
Check if running OpenSatKit version 2.2.1 and examine file.c for unsafe sprintf calls with EventErrStr bufferCheck Version:
Check OpenSatKit version in configuration or build metadataVerify Fix Applied:
Verify updated version no longer contains vulnerable sprintf calls in file.c functions📡 Detection & Monitoring
Log Indicators:
- Application crashes with segmentation faults
- Unusual file operations with long filenames
- Memory access violation errors
Network Indicators:
- Unusual file transfer patterns to OpenSatKit systems
SIEM Query:
Search for process crashes of OpenSatKit or file operations with path lengths exceeding normal thresholds