Patching CVE-2025-27558 vulnerability that had affected my linux image.
# CVE-2025-27558_Patching
Patching CVE-2025-27558 vulnerability that had affected my linux image.
# Atlas Incident: Unexpected Outbound Connection (197.155.77.1)
This folder documents a real-world network anomaly detected on the *Atlas* machine, a Wazuh-monitored Ubuntu system.
During a routine system update to patch CVE-2025-27558, Atlas unexpectedly attempted to fetch packages from a misconfigured HTTP mirror at 197.155.77.1:80. The server was publicly exposing directory listings (CPAN/) and returned 404 errors — triggering a full incident investigation.
### What’s Inside
- incident-atlas-mirror-anomaly.md
Full case file: discovery, investigation steps, tools used, root cause analysis, and resolution.
### Skills Demonstrated
- Threat detection & hunting
- Package manager forensics
- Mirror validation & hardening
- Vulnerability patching (CVE-2025-27558)
- Documentation & SOC reporting
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System now patched, secure, and fully monitored.
Logged as part of Jeffrey’s cybersecurity homelab portfolio.
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