CVE-2024-56142

6.5 MEDIUM

📋 TL;DR

This vulnerability in pghoard allows attackers to perform path traversal attacks, potentially gaining disk access with the same privileges as the pghoard service. This could lead to unauthorized reading of sensitive files on the system. All users running pghoard versions before the fix are affected.

💻 Affected Systems

Products:
  • pghoard
Versions: All versions before and including 2.2.2a
Operating Systems: All operating systems running pghoard
Default Config Vulnerable: ⚠️ Yes
Notes: All installations using vulnerable versions are affected regardless of configuration.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of the server if pghoard runs with high privileges, allowing attackers to read sensitive configuration files, database credentials, or backup data.

🟠

Likely Case

Unauthorized access to backup files, configuration data, or other sensitive information stored on the filesystem accessible to pghoard.

🟢

If Mitigated

Limited impact if pghoard runs with minimal privileges and filesystem permissions are properly restricted.

🌐 Internet-Facing: MEDIUM - pghoard typically runs as a backup service internally, but if exposed externally, the risk increases significantly.
🏢 Internal Only: MEDIUM - Even internal attackers could exploit this to access sensitive backup data and configuration files.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires some knowledge of the pghoard service and its configuration. No public exploit code has been released.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Versions after 2.2.2a

Vendor Advisory: https://github.com/Aiven-Open/pghoard/security/advisories/GHSA-m9hc-vxjj-4x6q

Restart Required: Yes

Instructions:

1. Stop the pghoard service. 2. Upgrade pghoard to version after 2.2.2a using your package manager or pip. 3. Restart the pghoard service. 4. Verify the service is running correctly.

🔧 Temporary Workarounds

No workarounds available

all

The vendor advisory states there are no known workarounds for this vulnerability.

🧯 If You Can't Patch

  • Restrict pghoard service account permissions to minimal required access
  • Implement strict network segmentation to limit access to pghoard service

🔍 How to Verify

Check if Vulnerable:

Check pghoard version: pghoard --version or pip show pghoard

Check Version:

pghoard --version 2>/dev/null || pip show pghoard | grep Version

Verify Fix Applied:

Verify version is greater than 2.2.2a and check that path traversal attempts are properly rejected

📡 Detection & Monitoring

Log Indicators:

  • Unusual file access patterns in pghoard logs
  • Failed path traversal attempts in application logs

Network Indicators:

  • Unusual connections to pghoard service from unexpected sources

SIEM Query:

source="pghoard" AND ("path traversal" OR "../" OR "directory traversal")

🔗 References

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