Microsoft Outlook up to 2016 C2R Email 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 has been found in Microsoft Outlook up to 2016 C2R and classified as critical. The affected element is an unknown function of the component Email Handler. Performing a manipulation results in access control. This vulnerability was named CVE-2017-8663. The attack may be initiated remotely. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Outlook up to 2016 C2R (Groupware Software). This affects an unknown part of the component Email Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 07/27/2017. The weakness was presented 07/27/2017 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2017-8663 since 05/03/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:

A remote code execution vulnerability exists in the way that Microsoft Outlook parses specially crafted email messages. An attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

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 KBClick to Run 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 100004†) and SecurityTracker (ID 1039011†). See VDB-103403, VDB-103421, VDB-103422 and VDB-103433 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

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: KBClick to Run

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: portal.msrc.microsoft.com
Researcher: Chris Antos.
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-8663 (🔍)
GCVE (CVE): GCVE-0-2017-8663
GCVE (VulDB): GCVE-100-104583

OVAL: 🔍

SecurityFocus: 100004 - Microsoft Outlook CVE-2017-8663 Remote Code Execution Vulnerability
SecurityTracker: 1039011

See also: 🔍

Entryinfo

Created: 07/28/2017 10:09
Updated: 01/06/2021 16:01
Changes: 07/28/2017 10:09 (82), 11/01/2019 20:12 (5), 01/06/2021 15:58 (3), 01/06/2021 16:01 (1)
Complete: 🔍
Cache ID: 216::103

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