6lj/EVIL-CVE-2021-23017-Update-2025

PoC

vulnerability in NGINX servers (versions 0.6.18–1.20.0). The scripts aim to cause a Denial of Service (DoS) by sending malicious DNS responses, with enhancements to bypass firewalls.

view exploit source poc_in_githubauthor 6ljpublished 2025-09-04catalog poc_in_github
01

exploited CVEs (1)

Known CVEs related to this entry.

IDseverity exploitable
CVE-2021-23017UShigh7.7Exploit
A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from the DNS server to cause 1-byte memory overwrite, resulting in…
scry

Working exploits like this target internet-facing systems. See what is exposed on your perimeter with a free passive scan.

Free scan