Citadel SMTP makeuserkey Function RCPT TO Command Remote Overflow

high Nessus Plugin ID 30123
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Synopsis

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

Description

The remote server is running Citadel, an open source solution for email and collaboration.

According to its version, the installation of Citadel on the remote host uses insufficient bounds-checking in its SMTP service during memory-copy operations when processing input to the RCPT TO command.
An unauthenticated, remote attacker may be able to leverage this issue to cause a stack-based buffer overflow, resulting in a crash of the affected service or even execution of arbitrary code.

Solution

Upgrade to Citadel version 7.11 or later.

Plugin Details

Severity: High

ID: 30123

File Name: citadel_smtp_rcpt_overflow.nasl

Version: 1.17

Type: remote

Published: 1/29/2008

Updated: 7/6/2018

Dependencies: find_service2.nasl, smtpserver_detect.nasl, citadel_overflow.nasl

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: cpe:/a:citadel:smtp

Required KB Items: Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Reference Information

CVE: CVE-2008-0394

BID: 27376

EDB-ID: 4949

CWE: 119