VDB-134733 · CVE-2019-0942 · Qualys 91529

Microsoft Windows up to Server 2019 Unified Write Filter access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.2$5k-$25k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Microsoft Windows up to Server 2019. Impacted is an unknown function of the component Unified Write Filter. Performing a manipulation results in access control. This vulnerability was named CVE-2019-0942. The attack may be initiated remotely. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as critical, was found in Microsoft Windows up to Server 2019 (Operating System). This affects an unknown code of the component Unified Write Filter. 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 summary by CVE is:

An elevation of privilege vulnerability exists in the Unified Write Filter (UWF) feature for Windows 10 when it improperly restricts access to the registry, aka 'Unified Write Filter Elevation of Privilege Vulnerability'.

The bug was discovered 05/14/2019. The weakness was presented 05/14/2019 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The public release was coordinated in cooperation with Microsoft. This vulnerability is uniquely identified as CVE-2019-0942 since 11/26/2018. It is possible to initiate the attack remotely. A authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/10/2020). MITRE ATT&CK project uses the attack technique T1068 for this issue. The advisory points out:

An elevation of privilege vulnerability exists in the Unified Write Filter (UWF) feature for Windows 10 when it improperly restricts access to the registry. An attacker who successfully exploited the vulnerability could make changes to the registry keys protected by UWF without having administrator privileges.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 91529 (Microsoft Windows Security Update for May 2019).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

See VDB-134678, VDB-134684, VDB-134698 and VDB-134699 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

Vendor Base Score (Microsoft): 4.4
Vendor Vector (Microsoft): 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

11/26/2018 🔍
05/14/2019 +169 days 🔍
05/14/2019 +0 days 🔍
05/14/2019 +0 days 🔍
05/15/2019 +1 days 🔍
06/10/2020 +392 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2019-0942 (🔍)
GCVE (CVE): GCVE-0-2019-0942
GCVE (VulDB): GCVE-100-134733
scip Labs: https://www.scip.ch/en/?labs.20161215
See also: 🔍

Entryinfo

Created: 05/15/2019 07:21
Updated: 06/10/2020 07:38
Changes: 05/15/2019 07:21 (72), 06/10/2020 07:38 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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