Detections
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Cisco Jabber for Windows 8.x / 9.x / 10.x / 11.0.x / 11.1.x XMPP Connection MitM STARTTLS Downgrade (cisco-sa-20151224-jab)

medium Nessus Plugin ID 87954

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Synopsis

The version of Cisco Jabber for Windows installed on the remote host is affected by a man-in-the-middle STARTTLS downgrade vulnerability.

Description

The version of Cisco Jabber for Windows installed on the remote host is 8.x, 9.x, 10.x, 11.0.x, or 11.1.x prior to 11.5. It is, therefore, affected by man-in-the-middle STARTTLS downgrade vulnerability due to improper checks to ensure the Extensible Messaging and Presence Protocol (XMPP) connection is established with Transport Layer Security (TLS). A man-in-the-middle attacker can exploit this to avoid TLS negotiation, resulting in the client establishing a cleartext XMPP connection.

Solution

Upgrade to Cisco Jabber for Windows version 11.5 or later.

See Also

http://www.nessus.org/u?dd3d4c70

https://tools.cisco.com/bugsearch/bug/CSCuw87419

Plugin Details

Severity: Medium

ID: 87954

File Name: cisco_jabber_client_CSCuw87419.nasl

Version: 1.8

Type: local

Agent: windows

Family: Windows

Published: 1/15/2016

Updated: 11/20/2019

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2015-6409

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: cpe:/a:cisco:jabber

Required KB Items: SMB/Cisco Jabber for Windows/Installed

Exploit Ease: No known exploits are available

Patch Publication Date: 12/22/2015

Vulnerability Publication Date: 12/24/2015

Reference Information

CVE: CVE-2015-6409