CVE-2021-1636
published 2021-01-12CVE-2021-1636: Microsoft SQL Elevation of Privilege Vulnerability
PriorityP279high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
ITWVulnCheck KEV
Exploited in the wild
EPSS
6.15%
92.7th percentile
Microsoft SQL Elevation of Privilege Vulnerability
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome_chrome | — | — | |
| microsoft | microsoft_sql_server_2012_for_x64-based_systems_service_pack_4 | >= 11.0.0 < publication | publication |
| microsoft | microsoft_sql_server_2012_service_pack_4 | >= 11.0.0 < publication | publication |
| microsoft | microsoft_sql_server_2014_service_pack_3 | >= 12.0.0 < publication | publication |
| microsoft | microsoft_sql_server_2016_for_x64-based_systems_service_pack_2 | >= 13.0.0 < publication | publication |
| microsoft | microsoft_sql_server_2016_service_pack_2 | >= 13.0.0 < publication | publication |
| microsoft | microsoft_sql_server_2017 | >= 14.0.0 < publication | publication |
| microsoft | microsoft_sql_server_2019 | >= 15.0.0 < publication | publication |
| microsoft | microsoft_sql_server_2019 | >= 16.0.0 < publication | publication |
| microsoft | sql_server | — | — |
| microsoft | sql_server | — | — |
| microsoft | sql_server | — | — |
| microsoft | sql_server | — | — |
| microsoft | sql_server | — | — |
| msrc | microsoft_sql_server_2012_for_32-bit_systems_service_pack_4 | — | — |
| msrc | microsoft_sql_server_2012_for_x64-based_systems_service_pack_4 | — | — |
| msrc | microsoft_sql_server_2014_service_pack_3_for_32-bit_systems | — | — |
| msrc | microsoft_sql_server_2014_service_pack_3_for_x64-based_systems | — | — |
| msrc | microsoft_sql_server_2016_for_x64-based_systems_service_pack_2 | — | — |
| msrc | microsoft_sql_server_2016_service_pack_2_for_x64-based_systems | — | — |
| msrc | microsoft_sql_server_2017_for_x64-based_systems | — | — |
| msrc | microsoft_sql_server_2019_for_x64-based_systems | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Exploitation requires an authenticated attacker sending data over a network to an affected SQL Server instance that is configured to run an Extended Event session — monitor for unexpected or anomalous Extended Event session activity on SQL Server ↗
- ·The attack surface is only present when SQL Server is configured to run an Extended Event session; disabling or restricting Extended Event sessions reduces exposure ↗
- ·Affected SQL Server versions span 2012 through 2019 across RTM, GDR, and CU update paths; ensure the correct patch track (GDR vs CU) is applied and note that switching from GDR to CU is a one-way operation ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
vulncheck8.8HIGH
vendor_msrc8.8HIGH
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Chrome
Long Term Support Channel Update for ChromeOS: CVE-2022-1859
vendor_chrome·2022-05-31·CVSS 9.8
CVE-2022-1859 [HIGH] Long Term Support Channel Update for ChromeOS: CVE-2022-1859
Long Term Support Channel Update for ChromeOS
CVE-2022-1859: Use after free in Performance Manager. 1297283 High CVE-2022-1636: Use after free in Performance APIs 1278608 High CVE-2021-43527 [internally reported] 1304660 High CVE-2022-23308 CrOS: Vulnerability reported in dev-libs/libxml2 1315563 Medium CVE-2022-1867: Insufficient validation of untrusted input in Data Transfer
Severity: high
Microsoft
Microsoft SQL Elevation of Privilege Vulnerability
vendor_msrc·2021-01-12·CVSS 8.8
CVE-2021-1636 [HIGH] Microsoft SQL Elevation of Privilege Vulnerability
Microsoft SQL Elevation of Privilege Vulnerability
FAQ: How can an attacker exploit this vulnerability?
An authenticated attacker can send data over a network to an affected SQL Server when configured to run an Extended Event session.
FAQ: There are GDR and/or CU (Cumulative Update) updates offered for my version of SQL Server. How do I know which update to use?
First, determine your SQL Server version number. For more information on determining your SQL Server version number, see Microsoft Knowledge Base Article 321185 - How to determine the version, edition, and update level of SQL Server and its components.
Second, in the table below, locate your version number or the version range that your version number falls within. The corresponding update is the one you need to install.
Note I
GHSA
GHSA-hmh6-2fr5-6q37: Microsoft SQL Elevation of Privilege Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-1636 [HIGH] CWE-89 GHSA-hmh6-2fr5-6q37: Microsoft SQL Elevation of Privilege Vulnerability
Microsoft SQL Elevation of Privilege Vulnerability
VulnCheck
Microsoft SQL Server Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
vulncheck·2021·CVSS 8.8
CVE-2021-1636 [HIGH] Microsoft SQL Server Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Microsoft SQL Server Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Microsoft SQL Elevation of Privilege Vulnerability
Affected: Microsoft SQL Server
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://www.security.com/threat-intelligence/ukraine-wiper-malware-russia
No detection rules found.
No public exploits indexed.
arXiv
VulRG: Multi-Level Explainable Vulnerability Patch Ranking for Complex Systems Using Graphs
arxiv_fulltext·2025-02-16
VulRG: Multi-Level Explainable Vulnerability Patch Ranking for Complex Systems Using Graphs
VulRG: Multi-Level Explainable Vulnerability Patch Ranking for Complex Systems Using Graphs
Yuning Jiang
[email protected]
0000-0003-4791-8452
National University of Singapore
Singapore
Nay Oo
[email protected]
NCS Cyber Special Ops R&D
Singapore
Qiaoran Meng
[email protected]
National University of Singapore
Singapore
Hoon Wei Lim
[email protected]
NCS Cyber Special Ops R&D
Singapore
Biplab Sikdar
[email protected]
National University of Singapore
Singapore
Jiang et al.
## Abstract
As interconnected systems proliferate, safeguarding complex infrastructures against an escalating array of cyber threats has become an urgent challenge. The growing number of vulnerabilities, coupled with resource constraints, makes addressing every vulnerability impractical, thereby rende
arXiv
Dynamic Vulnerability Criticality Calculator for Industrial Control Systems
arxiv_fulltext·2024-03-20
Dynamic Vulnerability Criticality Calculator for Industrial Control Systems
Dynamic Vulnerability Criticality Calculator for Industrial Control Systems
Pavlos Cheimonidis addr1,e1
Kontantinos Rantos addr1,e2
e1e-mail: [email protected]
e2e-mail: [email protected]
Department of Computer Science, International Hellenic University, 654 04 Kavala, Greece
Received: date / Accepted: date
## Abstract
The convergence of information and communication technologies has introduced new and advanced capabilities to Industrial Control Systems. However, concurrently, it has heightened their vulnerability to cyber attacks. Consequently, the imperative for new security methods has emerged as a critical need for these organizations to effectively identify and mitigate potential threats. This paper introduces an innovative approach by proposing a dynamic vulnerability critical
2021-01-12
Published
Exploited in the wild