CVE-2005-0199

CRITICAL

ngIRCd < 0.8.2 - Remote Denial of Service and Possible Code Execution via MODE Line Integer Underflow

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2005-0199. PoCs published by Florian Westphal.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in ngIRCd <= 0.8.1 by sending a maliciously crafted MODE command with an oversized buffer to trigger a denial of service (DoS). The PoC connects to the target IRC server, joins a channel, and sends the exploit payload to crash the service.

Description

Integer underflow in the Lists_MakeMask() function in lists.c in ngIRCd before 0.8.2 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a long MODE line that causes an incorrect length calculation, which leads to a buffer overflow.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Florian Westphal · cdoslinux

https://www.exploit-db.com/exploits/25070

View Code ZIP pw:eip

This exploit targets a buffer overflow vulnerability in ngIRCd <= 0.8.1 by sending a maliciously crafted MODE command with an oversized buffer to trigger a denial of service (DoS). The PoC connects to the target IRC server, joins a channel, and sends the exploit payload to crash the service.

Classification

Working Poc 90%

Attack Type

Dos

Complexity

Trivial

Reliability

Reliable

Target: ngIRCd <= 0.8.1

No auth needed

Prerequisites: Network access to the target IRC server · An empty channel to join for the exploit to work

MITRE ATT&CK