CVE-2024-25165
📋 TL;DR
A global buffer overflow vulnerability in SWFTools v0.9.2 allows attackers to execute arbitrary code or cause denial of service by processing malicious SWF files. This affects systems running vulnerable versions of SWFTools, particularly those that process untrusted SWF content. Users and administrators of SWFTools are at risk.
💻 Affected Systems
- SWFTools
📦 What is this software?
Swftools by Swftools
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Denial of service (application crash) or limited code execution within the SWFTools process context.
If Mitigated
Application crash with no further impact if proper sandboxing and privilege separation are implemented.
🎯 Exploit Status
Exploitation requires crafting a malicious SWF file. No public exploit code is available as of analysis.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://github.com/matthiaskramm/swftools/issues/217
Restart Required: Yes
Instructions:
1. Monitor the GitHub issue for patches. 2. If a patch is released, download the updated version. 3. Replace the vulnerable SWFTools installation with the patched version. 4. Restart any services using SWFTools.
🔧 Temporary Workarounds
Disable SWF Processing
linuxTemporarily disable SWFTools or block SWF file processing until a patch is available.
sudo systemctl stop swftools
sudo chmod -x /usr/bin/swftools
Input Validation
allImplement strict validation of SWF files before processing with SWFTools.
🧯 If You Can't Patch
- Isolate SWFTools to a dedicated, restricted environment with minimal privileges.
- Implement network segmentation to limit access to systems running SWFTools.
🔍 How to Verify
Check if Vulnerable:
Check SWFTools version: swftools --version. If version is 0.9.2, the system is vulnerable.Check Version:
swftools --versionVerify Fix Applied:
After patching, verify the version is updated to a non-vulnerable release.📡 Detection & Monitoring
Log Indicators:
- SWFTools process crashes
- Segmentation fault errors in system logs
- Unusual SWF file processing activity
Network Indicators:
- Unexpected SWF file uploads to systems running SWFTools
SIEM Query:
Process:swftools AND (EventID:1000 OR "segmentation fault")