Microsoft SharePoint Server 2013 SP1/2016/2019 privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft SharePoint Server 2013 SP1/2016/2019. It has been classified as critical. Impacted is an unknown function. The manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2021-31950. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft SharePoint Server 2013 SP1/2016/2019 (Groupware Software). It has been rated as critical. Impacted is confidentiality, integrity, and availability.

The weakness was shared 06/08/2021 as confirmed security guidance (Website). The advisory is shared at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2021-31950. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available.

The exploit is available at packetstormsecurity.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k.

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

The vulnerability is also documented in the vulnerability database at Exploit-DB (49982). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 7.6
Vendor Vector (Microsoft): 🔍

CVSSv2info

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

04/30/2021 🔍
06/08/2021 +39 days 🔍
06/08/2021 +0 days 🔍
06/09/2021 +0 days 🔍
05/03/2025 +1424 days 🔍

Sourcesinfo

Vendor: microsoft.com

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

CVE: CVE-2021-31950 (🔍)
GCVE (CVE): GCVE-0-2021-31950
GCVE (VulDB): GCVE-100-176489
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/09/2021 06:36
Updated: 05/03/2025 18:28
Changes: 06/09/2021 06:36 (32), 06/09/2021 06:40 (21), 06/10/2021 19:43 (2), 06/24/2024 01:28 (23), 01/20/2025 03:58 (1), 05/03/2025 18:28 (3)
Complete: 🔍
Cache ID: 216::103

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

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