Microsoft Outlook up to 2016 C2R Document File access control

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Outlook up to 2016 C2R and classified as critical. The impacted element is an unknown function of the component Document File Handler. Executing a manipulation can lead to access control. The identification of this vulnerability is CVE-2017-8571. The attack may be launched remotely. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in Microsoft Outlook up to 2016 C2R (Groupware Software) and classified as critical. This vulnerability affects an unknown code of the component Document File Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 07/27/2017. The weakness was shared 07/27/2017 by Nicolas Joly as KB4011052 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. This vulnerability was named CVE-2017-8571 since 05/03/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068. The advisory points out:

A security feature bypass vulnerability exists when Microsoft Office Outlook improperly handles input. An attacker who successfully exploited the vulnerability could execute arbitrary commands.

The vulnerability scanner Nessus provides a plugin with the ID 102035 (Security Updates for Outlook (July 2017)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110300 (Microsoft Office and Microsoft Office Services and Web Apps Security Update July 2017).

Applying the patch KB4011052 is able to eliminate this problem. The bugfix is ready for download at catalog.update.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (102035), SecurityFocus (BID 99452†) and SecurityTracker (ID 1039012†). The entries VDB-103403, VDB-103421, VDB-103422 and VDB-103433 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 102035
Nessus Name: Security Updates for Outlook (July 2017)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802136
OpenVAS Name: Microsoft Outlook 2013 Service Pack 1 Multiple Vulnerabilities (KB4011078)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: KB4011052

Timelineinfo

05/03/2017 🔍
07/27/2017 +85 days 🔍
07/27/2017 +0 days 🔍
07/27/2017 +0 days 🔍
07/27/2017 +0 days 🔍
07/27/2017 +0 days 🔍
07/28/2017 +1 days 🔍
07/28/2017 +0 days 🔍
08/01/2017 +4 days 🔍
01/06/2021 +1254 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: KB4011052
Researcher: Nicolas Joly
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8571 (🔍)
GCVE (CVE): GCVE-0-2017-8571
GCVE (VulDB): GCVE-100-104584

OVAL: 🔍

SecurityFocus: 99452 - Microsoft Office Outlook CVE-2017-8571 Security Bypass Vulnerability
SecurityTracker: 1039012

See also: 🔍

Entryinfo

Created: 07/28/2017 10:10
Updated: 01/06/2021 16:05
Changes: 07/28/2017 10:10 (82), 11/01/2019 20:04 (6), 01/06/2021 16:05 (2)
Complete: 🔍
Cache ID: 216::103

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