CVE-2017-20228
HIGHFlat Assembler 1.71.21 Stack-Based Buffer Overflow ROP
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2017-20228. PoCs published by Juan Sacco.
AI-analyzed exploit summary This exploit demonstrates a stack-based buffer overflow in FASM 1.7.21, leveraging ROP (Return-Oriented Programming) to bypass NX and execute arbitrary code (specifically, spawning a shell). The exploit constructs a ROP chain to write '/bin//sh' into memory and invoke execve.
Description
Flat Assembler 1.71.21 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying oversized input to the application. Attackers can craft malicious assembly input exceeding 5895 bytes to overwrite the instruction pointer and execute return-oriented programming chains for shell command execution.
Exploits (1)
This exploit demonstrates a stack-based buffer overflow in FASM 1.7.21, leveraging ROP (Return-Oriented Programming) to bypass NX and execute arbitrary code (specifically, spawning a shell). The exploit constructs a ROP chain to write '/bin//sh' into memory and invoke execve.
References (3)
Scores
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H