BSD Based telnetd telrcv Function Remote Command Execution

critical Nessus Plugin ID 10709

Synopsis

The remote telnet server may be vulnerable to a buffer overflow attack.

Description

The Telnet server does not return an expected number of replies when it receives a long sequence of 'Are You There' commands. This probably means it overflows one of its internal buffers and crashes. This could likely lead to arbitrary code execution.

Solution

Disable the telnet service by, for example, commenting out the 'telnet' line in /etc/inetd.conf.

Plugin Details

Severity: Critical

ID: 10709

File Name: teso_telnet.nasl

Version: 1.34

Type: remote

Family: Gain a shell remotely

Published: 7/24/2001

Updated: 8/1/2018

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

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 7/18/2001

Reference Information

CVE: CVE-2001-0554

BID: 3064

Detections

Analytics