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analyzing-web-server-logs-for-intrusion

Parse Apache and Nginx access logs to detect SQL injection attempts, local file inclusion, directory traversal, web scanner fingerprints, and brute-force patterns. Uses regex-based pattern matching against OWASP attack signatures, GeoIP enrichment for source attribution, and statistical anomaly detection for request frequency and response size outliers.

62

Quality

73%

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SecuritybySnyk

Low

Low-risk findings worth noting

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tessl review fix ./skills/analyzing-web-server-logs-for-intrusion/SKILL.md
SKILL.md
Quality
Evals
Security

Low

Low-risk findings.

1 low severity finding. Worth noting, but not necessarily harmful.

Low

W011: Third-party content exposure detected (indirect prompt injection risk).

What this means

The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.

Why it was flagged

The required runtime workflow reads **outsider-authored free text** from the user-supplied **web server access log file** (`--log-file`), and then ingests fields like **URI and user-agent** (which can contain attacker-controlled payloads) into the LLM context via the agent’s analysis/reporting path (e.g., `parse_log_file()` → `detect_attacks()` → `generate_report()`), making it an indirect prompt-injection risk.

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Repository
mukul975/Anthropic-Cybersecurity-Skills
Audited
Security analysis
Snyk

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