Individual skill
exploiting-glibc-heap-vulnerabilities
Methodology for exploiting glibc ptmalloc2 heap vulnerabilities during authorized engagements — use-after-free, double-free, heap overflow, and bin-based attacks (tcache poisoning, fast-bin dup, unsorted/large-bin) — including modern mitigations (tcache key, safe-linking, hook removal) and how to obtain leaks and arbitrary read/write.
internal/tools/skills/data/binary-exploitation/exploiting-glibc-heap-vulnerabilities/SKILL.md
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- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- binary-exploitation Declared skill tag
- heap-exploitation Declared skill tag
- exploit-development Declared skill tag
- engineering Derived category
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# Exploiting glibc Heap Vulnerabilities
## When to Use
- During authorized exploitation of programs that dynamically manage memory with `malloc`/`calloc`/`free` and contain
use-after-free, double-free, heap overflow, or off-by-one (poison-null-byte) bugs.
- When the stack is not the corruption surface but you control freed-chunk contents, chunk size fields, or allocation
ordering, and want to convert that into an arbitrary read/write or code-pointer overwrite.
- When selecting a bin-specific primitive: tcache poisoning, fast-bin dup, unsorted-bin attack, large-bin attack, House
of Force/Einherjar/Botcake, etc.
- When you must account for the target glibc version's mitigations (tcache `key`, safe-linking, removed malloc hooks).
## Critical: Concepts/Steps Most Often Missed
