FTP 'CWD ~root' Command Privilege Escalation

critical Nessus Plugin ID 10083

Synopsis

The remote FTP server is affected by a command privilege escalation vulnerability.

Description

The remote FTP server is affected by a flaw that may allow a remote attacker to gain unauthorized privileges. An attacker can exploit this flaw by issuing a specially crafted request to the 'CWD ~root' command.

Solution

Disallow FTP login for root, and make sure root's home directory is not world readable.

Plugin Details

Severity: Critical

ID: 10083

File Name: ftp_cwd_root.nasl

Version: 1.39

Type: remote

Family: FTP

Published: 6/22/1999

Updated: 1/16/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-1999-0082

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:ftp:ftp, cpe:/a:ftpcd:ftpcd

Required KB Items: Settings/ParanoidReport, ftp/login

Excluded KB Items: global_settings/supplied_logins_only

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 11/1/1988

Reference Information

CVE: CVE-1999-0082

Detections

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