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The GitHub repository `Jam0k/Public-Feeds-IOCs` exposed a vulnerability where public threat intelligence feeds were published without access controls or proper release binary obfuscation. In typical threat intelligence repositories, Indicators of Compromise (IOCs) are packaged into software releases containing binary files, signed hash lists, and release notes to guarantee authenticity and prevent unauthorized scraping or manipulation. When releases are missing or unmanaged on public repositories, unauthorized users can interact directly with raw source data or commit histories.
An attacker exploits this exposure by leveraging automated enumeration tools against the GitHub REST API or web interface to poll repository metadata. Because no releases, tags, or baseline binary controls were established, the underlying source files, potentially including raw feed parsers and non-sanitized threat intelligence parameters, are accessible directly through git object tree traversal. This allows threat actors to monitor feed modifications in real time, conduct operational security reconnaissance, or manipulate intelligence feeds prior to ingestion by end-user SIEM/EDR platforms.
DailyCVE Form:
Platform: GitHub
Version: All Versions
Vulnerability: Information Disclosure
Severity: Medium
date: 2024-01-15
Prediction: 2024-01-30
What Undercode Say: Analytics
Bash Commands and Code
Query GitHub API for repository releases curl -s https://api.github.com/repos/Jam0k/Public-Feeds-IOCs/releases | jq . Clone repository source directly in the absence of verified releases git clone https://github.com/Jam0k/Public-Feeds-IOCs.git cd Public-Feeds-IOCs Inspect commit history for exposed sensitive IOC assets or API endpoints git log -p -n 5
How Exploit: (Educational Purposes!)
Automated enumeration of raw IOC repository assets without release controls
python3 -c '
import requests
url = "https://api.github.com/repos/Jam0k/Public-Feeds-IOCs/contents/"
response = requests.get(url)
if response.status_code == 200:
for item in response.json():
print(f"[+] Found exposed asset: {item[\"name\"]} - {item[\"download_url\"]}")
else:
print("[-] Repository endpoint inaccessible")
'
Protection:
Implement mandatory GPG-signed release packaging and restrict raw repository branch visibility using branch protection rules. Integrate automated Secret Scanning and Artifact Attestation within GitHub Actions workflows to ensure only verified binaries and sanitized IOC feeds are published to release assets.
Impact:
Unauthorized actors can view unverified IOC feeds, conduct reconnaissance on security intelligence sources, or potentially pollute intelligence pipelines if commit access controls are insufficient.
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Sources:
Reported By: github.com
Extra Source Hub:
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