VDB-110553 · CVE-2017-11939 · BID 102105

Microsoft Office 2016 C2R information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Microsoft Office 2016 C2R. This vulnerability affects unknown code. Performing a manipulation results in information disclosure. This vulnerability was named CVE-2017-11939. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft Office 2016 C2R (Office Suite Software). It has been classified as problematic. This affects some unknown functionality. 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. The summary by CVE is:

Microsoft Office 2016 Click-to-Run (C2R) allows an information disclosure vulnerability due to the way Microsoft Office enforces DRM copy/paste permissions, aka "Microsoft Office Information Disclosure Vulnerability".

The bug was discovered 12/12/2017. The weakness was presented 12/12/2017 by Alex with Microsoft as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2017-11939 since 07/31/2017. It is possible to initiate the attack remotely. A authentication is required for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue. The advisory points out:

An information disclosure vulnerability exists when Microsoft Outlook fails to enforce copy/paste permissions on DRM-protected emails. An attacker who successfully exploited the vulnerability could potentially extract plaintext content from DRM-protected draft emails.

Applying a patch 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 vulnerability database at SecurityFocus (BID 102105†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: catalog.update.microsoft.com

Timelineinfo

07/31/2017 🔍
12/12/2017 +134 days 🔍
12/12/2017 +0 days 🔍
12/12/2017 +0 days 🔍
12/12/2017 +0 days 🔍
12/12/2017 +0 days 🔍
12/13/2017 +1 days 🔍
01/27/2021 +1141 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Researcher: Alex Harmon, Microsoft (Alex)
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-11939 (🔍)
GCVE (CVE): GCVE-0-2017-11939
GCVE (VulDB): GCVE-100-110553

OVAL: 🔍

SecurityFocus: 102105 - Microsoft Office Outlook CVE-2017-11939 Information Disclosure Vulnerability
SecurityTracker: 1039994

Entryinfo

Created: 12/13/2017 08:02
Updated: 01/27/2021 09:00
Changes: 12/13/2017 08:02 (63), 12/14/2019 08:56 (7), 01/27/2021 08:54 (2), 01/27/2021 09:00 (1)
Complete: 🔍
Cache ID: 216:856:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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