ProFTPD 1.2.0pre4 mkdir Command Directory Name Handling Remote Overflow

critical Nessus Plugin ID 10190

Synopsis

The remote FTP server is prone to a buffer overflow attack.

Description

It was possible to crash the remote FTP server by creating a large number of nested directories and then trying to upload a file. This issue is known to affect ProFTPD, although other FTP servers may be affected as well.

It is likely that a remote attacker can leverage this issue to execute arbitrary code on the remote host, subject to the privileges under which the service runs.

Solution

Configure the service so that directories are not writable by 'anonymous' or any untrusted users.

If running ProFTPD, upgrade to version 1.2.0pre6 or later; otherwise, contact the vendor to see if an update exists.

See Also

https://seclists.org/bugtraq/1999/Sep/143

Plugin Details

Severity: Critical

ID: 10190

File Name: proftpd_overflow.nasl

Version: 1.46

Type: remote

Family: FTP

Published: 8/31/1999

Updated: 11/15/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: cpe:/a:proftpd:proftpd

Exploit Available: true

Exploit Ease: Exploits are available

Reference Information

CVE: CVE-1999-0911

BID: 612