CVE-1999-0021

wwwcount - Remote Command Execution via Buffer Overflow in Count.cgi

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-1999-0021. PoCs published by Razvan Dragomirescu.

AI-analyzed exploit summary This exploit targets a buffer overflow vulnerability in the Wwwcount (Count.cgi) CGI program via an overly long QUERY_STRING environment variable. It uses shellcode to spawn an xterm connected to a specified host, demonstrating remote code execution.

Description

Arbitrary command execution via buffer overflow in Count.cgi (wwwcount) cgi-bin program.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Razvan Dragomirescu · cremotelinux

https://www.exploit-db.com/exploits/19105

View Code ZIP pw:eip

This exploit targets a buffer overflow vulnerability in the Wwwcount (Count.cgi) CGI program via an overly long QUERY_STRING environment variable. It uses shellcode to spawn an xterm connected to a specified host, demonstrating remote code execution.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Wwwcount (Count.cgi) (version not specified)

No auth needed

Prerequisites: Target must be running vulnerable Wwwcount (Count.cgi) · Attacker must be able to send HTTP requests to the target

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1203 - Exploitation for Client Execution

devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/128

Scores

EPSS 0.2667

EPSS Percentile 97.8%

Details

Status published

Products (1)

muhammad_a._muquit/wwwcount 2.3

Published Nov 05, 1997

Tracked Since Feb 18, 2026