kadir

kadir / copy-fail-CVE-2026-31431-IOC

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Detection, mitigation, and IOC toolkit for Copy Fail CVE-2026-31431 Linux kernel page-cache privilege escalation

copy-fail copyfail cve-2026-31431 incident-response ioc
19
1
100% credibility
Found May 01, 2026 at 19 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
Python
AI Summary

A collection of safe tools to check for, detect signs of, and block the Copy Fail Linux kernel vulnerability CVE-2026-31431.

How It Works

1
📰 Hear about Copy Fail

You learn about a sneaky Linux security flaw that lets attackers tamper with files in memory without touching the disk.

2
🔍 Test your system

You run a harmless check to see if your computer has this weak spot open.

3
See the results
✅
No risk

Everything looks good, but you decide to stay vigilant.

⚠️
Risk exposed

A vulnerability is found, so you protect immediately.

4
🛡️ Lock it down

You quickly block the dangerous feature to stop any attacks.

5
👀 Set up watchers

You turn on alerts that spot suspicious activity as it happens.

6
📁 Scan for tampering

You compare key files in memory and on disk for hidden changes.

✅ Fully protected

Your system is now safe, monitored, and ready for anything.

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Star Growth

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AI-Generated Review

What is copy-fail-CVE-2026-31431-IOC?

This Python toolkit delivers detection, response, mitigation, and IOCs for CVE-2026-31431, the "Copy Fail" Linux kernel flaw that escalates privileges by corrupting page-cache without touching disk files, dodging standard anomaly detection github tools. Run quick CLI checks to probe vulnerability via safe AF_ALG sockets and sentinel files, deploy real-time eBPF monitors for AF_ALG and splice syscalls, auditd rules for suspicious activity, page-cache diffs for post-exploit tampering, and Sigma rules for SIEM integration. Mitigation includes one-shot scripts to blacklist the algif_aead module plus Ansible playbooks for fleets.

Why is it gaining traction?

It stands out with layered github detection rules—eBPF for high-confidence exploit chains, auditd for syscalls, and page-cache checks—targeting this vuln's unique bypass of file integrity monitoring, unlike generic bot detection mitigation suites. Developers grab it for JSON-logging monitors, cron-friendly diff scripts, and immediate blacklisting that works without kernel upgrades. The quick-start CLI and SIEM-ready outputs lower the barrier for detection response mitigation reporting recovery remediation.

Who should use this?

Linux sysadmins hardening servers against local privesc, security engineers building detection assessment and mitigation of vulnerabilities in open source dependencies, and incident responders investigating 31431 IOCs on affected distros. Ideal for teams running unpatched kernels in VMs or prod, needing drone detection github-style precision for kernel crypto abuse without full SIEM overhauls.

Verdict

Grab it if you're exposed to CVE-2026-31431—solid user-facing tools and docs make it practical despite 19 stars and 1.0% credibility score signaling early maturity. Test thoroughly; pair with kernel patches for production. (187 words)

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