Cisco Jabber 10.6.x/11.0.x/11.1.x on Windows XMPP Session information disclosure

CVSS Meta Temp Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Cisco Jabber 10.6.x/11.0.x/11.1.x on Windows. This issue affects some unknown processing of the component XMPP Session Handler. The manipulation results in information disclosure. This vulnerability was named CVE-2015-6409. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Cisco Jabber 10.6.x/11.0.x/11.1.x on Windows. It has been classified as critical. Affected is an unknown part of the component XMPP Session Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Cisco Jabber 10.6.x, 11.0.x, and 11.1.x on Windows allows man-in-the-middle attackers to conduct STARTTLS downgrade attacks and trigger cleartext XMPP sessions via unspecified vectors, aka Bug ID CSCuw87419.

The weakness was presented 12/26/2015 by Basti with Synack as CSCuw87419 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2015-6409 since 08/17/2015. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 87954 (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)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124697 (Cisco Jabber for Windows STARTTLS Downgrade Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87954), SecurityFocus (BID 79678†) and Vulnerability Center (SBV-55398†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
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CVSSv2info

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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 87954
Nessus Name: 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)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103403
OpenVAS Name: Cisco Jabber STARTTLS Downgrade Vulnerability (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/17/2015 🔍
12/22/2015 +127 days 🔍
12/24/2015 +2 days 🔍
12/24/2015 +0 days 🔍
12/26/2015 +2 days 🔍
12/26/2015 +0 days 🔍
12/28/2015 +2 days 🔍
12/28/2015 +0 days 🔍
01/15/2016 +18 days 🔍
11/18/2024 +3230 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuw87419
Researcher: Basti
Organization: Synack
Status: Confirmed

CVE: CVE-2015-6409 (🔍)
GCVE (CVE): GCVE-0-2015-6409
GCVE (VulDB): GCVE-100-79908
SecurityFocus: 79678 - Cisco Jabber for Windows CVE-2015-6409 Man in the Middle Security Bypass Vulnerability
SecurityTracker: 1034540
Vulnerability Center: 55398 - [cisco-sa-20151224-jab] Cisco Jabber on Windows Remote Man-in-the-Middle Attack due to a Downgrade Issue in TLS, Medium

Entryinfo

Created: 12/28/2015 14:14
Updated: 11/18/2024 09:46
Changes: 12/28/2015 14:14 (67), 06/19/2018 21:09 (17), 07/01/2022 14:45 (4), 11/18/2024 09:46 (16)
Complete: 🔍
Cache ID: 216:CF2:103

Once again VulDB remains the best source for vulnerability data.

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