CVE-2024-25567

8.1 HIGH

📋 TL;DR

This CVE describes a path traversal vulnerability that allows attackers to write files outside intended directories and potentially overwrite existing files. It affects systems running vulnerable software versions where file upload or manipulation functionality exists. The vulnerability could lead to unauthorized file access, data corruption, or system compromise.

💻 Affected Systems

Products:
  • Specific product information not provided in CVE description
Versions: Version range not specified in provided information
Operating Systems: All operating systems running vulnerable software
Default Config Vulnerable: ⚠️ Yes
Notes: Affects systems with file upload or file manipulation functionality. The exact products and versions would need to be determined from the referenced ICS advisories.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise through overwriting critical system files, installation of persistent backdoors, or exfiltration of sensitive data.

🟠

Likely Case

Unauthorized file access leading to information disclosure, data tampering, or denial of service through file overwrites.

🟢

If Mitigated

Limited impact with proper file permission restrictions, input validation, and directory isolation in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Path traversal vulnerabilities typically have low exploitation complexity. The advisory references suggest this affects industrial control systems.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor-specific advisories for exact version

Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-24-074-12

Restart Required: Yes

Instructions:

1. Review the CISA ICS advisory for affected products
2. Contact your vendor for specific patch information
3. Apply vendor-provided patches
4. Restart affected services or systems
5. Verify the fix is properly applied

🔧 Temporary Workarounds

Input Validation and Sanitization

all

Implement strict input validation to reject path traversal sequences

# Example for web applications: validate file paths don't contain ../ or similar sequences
# Implementation depends on specific application framework

File System Permissions Restriction

all

Limit write permissions to specific directories using least privilege principles

# Linux: chmod 755 /allowed/directory && chown root:root /allowed/directory
# Windows: icacls C:\allowed\directory /deny Everyone:(OI)(CI)(W)

🧯 If You Can't Patch

  • Implement network segmentation to isolate vulnerable systems from critical assets
  • Deploy web application firewalls (WAF) with path traversal detection rules

🔍 How to Verify

Check if Vulnerable:

Test file upload functionality with path traversal payloads (e.g., ../../../etc/passwd) to see if restricted directory access is possible

Check Version:

Check application-specific version command (varies by product)

Verify Fix Applied:

Attempt the same path traversal tests after patching to confirm they are blocked

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed file access attempts with ../ sequences
  • Unauthorized file write operations outside expected directories
  • File overwrite events on sensitive system files

Network Indicators:

  • HTTP requests containing ../ sequences in file upload parameters
  • Unusual file transfer patterns to/from system directories

SIEM Query:

source="web_logs" AND (uri="*../*" OR params="*../*")

🔗 References

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