IBM Domino 8.5.x / 9.0.x < 9.0.1 Fix Pack 8 TLS Server Diffie-Hellman Key Validation MitM

critical Nessus Plugin ID 100682

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Synopsis

A business collaboration application running on the remote host is affected by a key validation vulnerability.

Description

According to its banner, the version of IBM Domino (formerly IBM Lotus Domino) running on the remote host is 8.5.x or 9.0.x prior to 9.0.1 Fix Pack 8. It is, therefore, affected by a flaw in the TLS server due to improper validation of Diffie-Hellman parameters. A man-in-the-middle (MitM) attacker can exploit this, via a small subgroup attack, to more easily break the encryption and thereby compromise the connection between the server and clients, resulting in the disclosure of user authentication credentials.

Solution

Upgrade to IBM Domino version 9.0.1 Fix Pack 8 or later.

Note that users who remain on the following releases may open a service request with IBM Support for a custom hotfix :

- version 9.0.1 through 9.0.1 Fix Pack 7 Interim Fix 2
- version 9.0 through 9.0 Interim Fix 7

Plugin Details

Severity: Critical

ID: 100682

File Name: domino_9_0_1_fp8.nasl

Version: 1.7

Type: remote

Family: Misc.

Published: 6/9/2017

Updated: 4/11/2022

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2016-6087

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:ibm:domino

Required KB Items: Settings/ParanoidReport, Domino/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 5/31/2017

Vulnerability Publication Date: 5/31/2017

Reference Information

CVE: CVE-2016-6087

BID: 98794

IAVB: 2017-B-0064

Detections

Analytics