Microsoft SharePoint Server 2019 incorrect implementation of authentication algorithm

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as very critical, was found in Microsoft SharePoint Server 2019. This impacts an unknown function. Executing a manipulation can lead to an unknown weakness. The identification of this vulnerability is CVE-2023-29357. The attack may be launched remotely. Furthermore, there is an exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability has been found in Microsoft SharePoint Server 2019 (Groupware Software) and classified as very critical. The CWE definition for the vulnerability is CWE-303. The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Microsoft SharePoint Server Elevation of Privilege Vulnerability

The weakness was shared 06/13/2023 as confirmed security guidance (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability was named CVE-2023-29357. Technical details are unknown but an exploit is available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 03/11/2025).

It is declared as attacked. This issue was added on 01/10/2024 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 01/31/2024:

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

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

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

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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: 9.8
VulDB Meta Temp Score: 9.2

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 9.8
Vendor Vector (Microsoft): 🔍

CNA Base Score: 9.8
CNA Vector (Microsoft): 🔍

CVSSv2info

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

Exploitinginfo

Class: Incorrect implementation of authentication algorithm
CWE: CWE-303
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

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: 🔍

Timelineinfo

04/04/2023 🔍
06/13/2023 +70 days 🔍
06/13/2023 +0 days 🔍
06/13/2023 +0 days 🔍
03/11/2025 +636 days 🔍

Sourcesinfo

Vendor: microsoft.com

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

CVE: CVE-2023-29357 (🔍)
GCVE (CVE): GCVE-0-2023-29357
GCVE (VulDB): GCVE-100-231394
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/13/2023 19:59
Updated: 03/11/2025 01:42
Changes: 06/13/2023 19:59 (34), 06/13/2023 20:03 (19), 07/12/2023 11:15 (1), 07/12/2023 11:21 (10), 04/15/2024 04:07 (20), 04/30/2024 11:08 (10), 09/09/2024 22:30 (1), 03/11/2025 01:42 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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