CVE-2011-0418

Pure-FTPd < 1.0.32 - Authenticated Denial of Service via Glob Expression Expansion

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2011-0418. PoCs published by Maksymilian Arciemowicz.

AI-analyzed exploit summary This exploit demonstrates a denial-of-service (DoS) vulnerability in FreeBSD's ftpd by sending a specially crafted STAT command with excessive wildcards, causing CPU resource exhaustion. The issue stems from the glob(3) function in FreeBSD's libc, which fails to enforce GLOB_LIMIT properly.

Description

The glob implementation in Pure-FTPd before 1.0.32, and in libc in NetBSD 5.1, does not properly expand expressions containing curly brackets, which allows remote authenticated users to cause a denial of service (memory consumption) via a crafted FTP STAT command.

Exploits (1)

exploitdb WORKING POC
by Maksymilian Arciemowicz · textdosfreebsd
https://www.exploit-db.com/exploits/24450

This exploit demonstrates a denial-of-service (DoS) vulnerability in FreeBSD's ftpd by sending a specially crafted STAT command with excessive wildcards, causing CPU resource exhaustion. The issue stems from the glob(3) function in FreeBSD's libc, which fails to enforce GLOB_LIMIT properly.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: FreeBSD ftpd (tested on FreeBSD 9.1)
Auth required
Prerequisites: Anonymous FTP access enabled · Network connectivity to the target FTP server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/1273
Vendor Advisory vendor-advisory x_refsource_mandriva
http://www.mandriva.com/security/advisories?name=MDVSA-2011:094
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=704283
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/47671
Exploit third-party-advisory x_refsource_sreasonres
http://securityreason.com/achievement_securityalert/97
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/8228
Various Sources x_refsource_confirm
http://www.pureftpd.org/project/pure-ftpd/news

Scores

EPSS 0.0726
EPSS Percentile 93.5%

Details

CWE
CWE-20
Status published
Products (50)
netbsd/netbsd 5.1
pureftpd/pure-ftpd 0.90
pureftpd/pure-ftpd 0.91
pureftpd/pure-ftpd 0.92
pureftpd/pure-ftpd 0.93
pureftpd/pure-ftpd 0.94
pureftpd/pure-ftpd 0.95
pureftpd/pure-ftpd 0.95-pre1
pureftpd/pure-ftpd 0.95-pre2
pureftpd/pure-ftpd 0.95-pre3
... and 40 more
Published May 24, 2011
Tracked Since Feb 18, 2026