ProFTPD 'mod_copy' Arbitrary File Copy Vulnerability (Remote)

high Nessus Plugin ID 132749

Language:

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 6.7

Synopsis

It is possible for anonymous users to copy arbitrary files.

Description

The remote host is running ProFTPD. It is affected by a vulnerability in the mod_copy module which fails to honor <Limit READ> and <Limit WRITE> configurations as expected. An unauthenticated, remote attacker can exploit this, by using the mod_copy module's functionality, in order to copy arbitrary files in the FTP directory, provided that anonymous logins and mod_copy are enabled and the FTP directory is accessible from a web server. If a file exists in the FTP directory that contains PHP code but does not use the PHP extension, an attacker can copy this file to one with a PHP extension in order to execute code.

Solution

Upgrade to the latest version of ProFTPD.

Plugin Details

Severity: High

ID: 132749

File Name: proftpd_mod_copy.nasl

Version: 1.4

Type: remote

Family: FTP

Published: 1/9/2020

Updated: 1/10/2020

Dependencies: ftpserver_detect_type_nd_version.nasl

Risk Information

Risk Factor: High

VPR Score: 6.7

CVSS Score Source: CVE-2019-12815

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.9

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*

Required KB Items: ftp/proftpd

Excluded KB Items: global_settings/supplied_logins_only

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 7/17/2019

Vulnerability Publication Date: 7/19/2019

Reference Information

CVE: CVE-2019-12815

BID: 109339