Microsoft Windows 7 SP1 up to Server 2019 Remote Procedure Call Runtime Remote Privilege Escalation

EntryeditHistoryDiffjsonxmlCTI
CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.7$25k-$100k0.00

A vulnerability was found in Microsoft Windows (Operating System). It has been classified as critical. This affects an unknown functionality of the component Remote Procedure Call Runtime. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Remote Procedure Call Runtime Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-28327, CVE-2021-28329, CVE-2021-28330, CVE-2021-28331, CVE-2021-28332, CVE-2021-28333, CVE-2021-28334, CVE-2021-28335, CVE-2021-28336, CVE-2021-28337, CVE-2021-28338, CVE-2021-28339, CVE-2021-28340, CVE-2021-28341, CVE-2021-28342, CVE-2021-28343, CVE-2021-28344, CVE-2021-28345, CVE-2021-28346, CVE-2021-28352, CVE-2021-28353, CVE-2021-28354, CVE-2021-28355, CVE-2021-28356, CVE-2021-28358, CVE-2021-28434.

The weakness was disclosed 04/13/2021 as confirmed security guidance (Website). It is possible to read the advisory at portal.msrc.microsoft.com. This vulnerability is uniquely identified as CVE-2021-28357 since 03/12/2021. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $25k-$100k at the moment (estimation calculated on 04/16/2021).

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

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CPE 2.3infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.8
VulDB Temp Score: 7.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 8.8
Vendor Vector (Microsoft): 🔒

CVSSv2infoedit

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Unknown
CWE: Unknown
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Unproven

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

Reaction Time: 🔒
0-Day Time: 🔒
Exposure Time: 🔒

Patch: portal.msrc.microsoft.com

Timelineinfoedit

03/12/2021 CVE assigned
04/13/2021 +32 days VulDB entry created
04/13/2021 +0 days Advisory disclosed
04/13/2021 +0 days Countermeasure disclosed
04/16/2021 +3 days VulDB last update

Sourcesinfoedit

Vendor: https://www.microsoft.com/
Product: https://www.microsoft.com/en-us/windows

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

CVE: CVE-2021-28357 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161215

Entryinfoedit

Created: 04/13/2021 11:16 PM
Updated: 04/16/2021 06:43 PM
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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