RIM BlackBerry Link 1.2.1.30 on Windows/Mac Peer Manager IPv6 WebDAV Share access control

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

A vulnerability was found in RIM BlackBerry Link 1.2.1.30 on Windows/Mac. It has been rated as critical. This issue affects an unknown part of the component Peer Manager. The manipulation as part of a IPv6 WebDAV Share leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, and integrity. The summary by CVE is:

BlackBerry Link before 1.2.1.31 on Windows and before 1.1.1 build 39 on Mac OS X does not properly determine the user account for execution of Peer Manager in certain situations involving successive logins with different accounts, which allows context-dependent attackers to bypass intended restrictions on remote file-access folders via IPv6 WebDAV requests, a different vulnerability than CVE-2013-3694.

The weakness was released 11/12/2013 by Tavis Ormandy and Ollie Whitehouse as BSRT 2013-012 Vulnerability in remote file access feature impacts BlackBerry Link as confirmed advisory (Website). It is possible to read the advisory at btsc.webapps.blackberry.com. The public release was coordinated with RIM. The identification of this vulnerability is CVE-2013-6798 since 11/15/2013. The attack may be initiated remotely. A simple authentication is necessary for exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

A public exploit has been developed by Tavis Ormandy and been published immediately after the advisory. The exploit is available at blog.cmpxchg8b.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 71040 (BlackBerry Link Multiple Vulnerabilities), 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.

Upgrading to version 1.2.1.31 or 1.1.1 (Build 39) eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (89202) and Tenable (71040). blog.cmpxchg8b.com is providing further details. Entry connected to this vulnerability is available at 11169.

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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 4.7

VulDB Base Score: 5.4
VulDB Temp Score: 4.7
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Exploitinginfo

Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Tavis Ormandy
Download: 🔍

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Nessus ID: 71040
Nessus Name: BlackBerry Link Multiple Vulnerabilities
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Countermeasuresinfo

Recommended: Upgrade
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Upgrade: BlackBerry Link 1.2.1.31/1.1.1 (Build 39)

Timelineinfo

11/12/2013 🔍
11/12/2013 +0 days 🔍
11/12/2013 +0 days 🔍
11/15/2013 +3 days 🔍
11/17/2013 +2 days 🔍
11/22/2013 +5 days 🔍
11/22/2013 +0 days 🔍
03/25/2019 +1949 days 🔍

Sourcesinfo

Vendor: rim.com

Advisory: BSRT 2013-012 Vulnerability in remote file access feature impacts BlackBerry Link
Researcher: Tavis Ormandy, Ollie Whitehouse
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-6798 (🔍)
X-Force: 89202 - BlackBerry Link Per Manager security bypass
SecurityFocus: 63695
OSVDB: 99950

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
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Entryinfo

Created: 11/22/2013 12:24
Updated: 03/25/2019 13:20
Changes: 11/22/2013 12:24 (74), 03/25/2019 13:20 (1)
Complete: 🔍

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