Microsoft Office on Mac untrusted search path

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Office on Mac. The affected element is an unknown function. The manipulation results in untrusted search path. This vulnerability is reported as CVE-2016-7300. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Microsoft Office on Mac (Office Suite Software) (affected version unknown). It has been classified as critical. Affected is an unknown functionality. The manipulation with an unknown input leads to a untrusted search path vulnerability. CWE is classifying the issue as CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Untrusted search path vulnerability in Microsoft Auto Updater for Mac allows local users to gain privileges via a Trojan horse executable file, aka "Microsoft (MAU) Office Elevation of Privilege Vulnerability."

The bug was discovered 12/13/2016. The weakness was disclosed 12/13/2016 with Microsoft as MS16-148 as confirmed bulletin (Technet). The advisory is shared for download at technet.microsoft.com. This vulnerability is traded as CVE-2016-7300 since 09/09/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. 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 T1574.

The vulnerability scanner Nessus provides a plugin with the ID 95810 (MS16-148: Security Update for Microsoft Office (3204068) (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110292 (Microsoft Office Remote Code Execution Vulnerabilities (MS16-148)).

Applying the patch MS16-148 is able to eliminate this problem. The bugfix is ready for download at technet.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 (95810) and SecurityFocus (BID 94784†). The entries VDB-94434, VDB-94439, VDB-94440 and VDB-94441 are pretty similar. Once again VulDB remains the best 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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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
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: 95810
Nessus Name: MS16-148: Security Update for Microsoft Office (3204068) (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: MS16-148

Timelineinfo

09/09/2016 🔍
12/13/2016 +95 days 🔍
12/13/2016 +0 days 🔍
12/13/2016 +0 days 🔍
12/13/2016 +0 days 🔍
12/14/2016 +1 days 🔍
12/14/2016 +0 days 🔍
12/20/2016 +6 days 🔍
10/08/2022 +2118 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS16-148
Organization: Microsoft
Status: Confirmed

CVE: CVE-2016-7300 (🔍)
GCVE (CVE): GCVE-0-2016-7300
GCVE (VulDB): GCVE-100-94452
SecurityFocus: 94784 - Microsoft Auto Updater for Mac CVE-2016-7300 Local Privilege Escalation Vulnerability
SecurityTracker: 1037441

See also: 🔍

Entryinfo

Created: 12/14/2016 14:12
Updated: 10/08/2022 12:40
Changes: 12/14/2016 14:12 (73), 07/07/2019 09:34 (5), 10/08/2022 12:40 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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