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mukul975
efca3ec611
Mapped every skill to NIST CSF 2.0 subcategory IDs (GV/ID/PR/DE/RS/RC functions) based on subdomain and content analysis. Restores 11 skills corrupted during prior rebase, re-enriching with ATLAS, D3FEND, NIST AI RMF, and CSF 2.0 fields. All 754 skills now carry structured mappings for all 5 security frameworks: - MITRE ATT&CK (in tags) - MITRE ATLAS v5.5 (atlas_techniques) - MITRE D3FEND v1.3 (d3fend_techniques) - NIST AI RMF 1.0 (nist_ai_rmf) - NIST CSF 2.0 (nist_csf)
83 lines
2.6 KiB
Markdown
83 lines
2.6 KiB
Markdown
---
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name: performing-fuzzing-with-aflplusplus
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description: 'Perform coverage-guided fuzzing of compiled binaries using AFL++ (American Fuzzy Lop Plus Plus) to discover
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memory corruption, crashes, and security vulnerabilities. The tester instruments target binaries with afl-cc/afl-clang-fast,
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manages input corpora with afl-cmin and afl-tmin, runs parallel fuzzing campaigns with afl-fuzz, and triages crashes using
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CASR or GDB scripts. Activates for requests involving binary fuzzing, crash discovery, coverage-guided testing, or AFL++
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fuzzing campaigns.
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'
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domain: cybersecurity
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subdomain: application-security
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tags:
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- fuzzing
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- aflplusplus
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- coverage-guided
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- crash-triage
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- binary-analysis
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- security-testing
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version: '1.0'
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author: mahipal
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license: Apache-2.0
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nist_ai_rmf:
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- MEASURE-2.7
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- MAP-5.1
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- MANAGE-2.4
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atlas_techniques:
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- AML.T0070
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- AML.T0066
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- AML.T0082
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nist_csf:
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- PR.PS-01
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- PR.PS-04
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- ID.RA-01
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- PR.DS-10
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---
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# Performing Fuzzing with AFL++
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## Overview
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AFL++ is a community-maintained fork of American Fuzzy Lop (AFL) that provides coverage-guided
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fuzzing for compiled binaries. It instruments targets at compile time or via QEMU/Unicorn mode
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for binary-only fuzzing, then mutates input corpora to discover new code paths. AFL++ includes
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advanced scheduling (MOpt, rare), custom mutators, CMPLOG for input-to-state comparison solving,
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and persistent mode for high-throughput fuzzing.
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## When to Use
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- When conducting security assessments that involve performing fuzzing with aflplusplus
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- When following incident response procedures for related security events
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- When performing scheduled security testing or auditing activities
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- When validating security controls through hands-on testing
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## Prerequisites
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- AFL++ installed (`apt install afl++` or build from source)
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- Target binary source code (for compile-time instrumentation) or QEMU mode for binary-only
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- Initial seed corpus of valid inputs for the target format
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- Linux system with /proc/sys/kernel/core_pattern configured
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## Steps
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1. Instrument the target binary with `afl-cc` or `afl-clang-fast`
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2. Prepare seed corpus directory with minimal valid inputs
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3. Minimize corpus with `afl-cmin` to remove redundant seeds
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4. Run `afl-fuzz` with appropriate flags (-i input -o output)
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5. Monitor fuzzing progress via afl-whatsup and UI stats
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6. Triage crashes with `afl-tmin` minimization and CASR/GDB analysis
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7. Report unique crashes with reproduction steps
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## Expected Output
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```
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+++ Findings +++
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unique crashes: 12
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unique hangs: 3
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last crash: 00:02:15 ago
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+++ Coverage +++
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map density: 4.23% / 8.41%
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paths found: 1847
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exec speed: 2145/sec
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```
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