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CVE-2021-1636 Report - Details, Severity, & Advisories

CVE-2021-1636 Report - Details, Severity, & Advisories

Twingate Team

Jan 25, 2024

CVE-2021-1636 is a high-severity vulnerability affecting Microsoft SQL Server versions 2012, 2014, 2016, 2017, and 2019. This elevation of privilege vulnerability can potentially allow an attacker to gain unauthorized access and control over affected systems. While the exploitability assessment suggests that exploitation is less likely, it's crucial for organizations using these SQL Server versions to apply the necessary security updates to protect their systems.

How do I know if I'm affected?

If you're using Microsoft SQL Server, you might be affected by the vulnerability. This issue impacts SQL Server versions 2012 (sp4), 2014 (sp3), 2016 (sp2), 2017, and 2019. To know if you're affected, check your SQL Server version and see if it matches any of the mentioned versions.

What should I do if I'm affected?

If you're affected by the vulnerability, follow these simple steps. First, identify your SQL Server version. Then, visit Microsoft's Security Update Guide to find the appropriate update for your version. Lastly, apply the security update to protect your system. Stay vigilant and keep your software up-to-date to prevent unauthorized access.

Is this in CISA’s Known Exploited Vulnerabilities Catalog?

Yes, CVE-2021-1636 is in CISA's Known Exploited Vulnerabilities Catalog. This vulnerability, known as Microsoft SQL Elevation of Privilege Vulnerability, was added on January 12, 2021. Although a specific due date and required action are not mentioned, it's important to apply the appropriate security updates provided by Microsoft to protect your system from potential unauthorized access.

Weakness enumeration

The weakness enumeration for this vulnerability is categorized as CWE-89, referring to SQL Injection, which involves improper neutralization of special elements in SQL commands.

For more details

CVE-2021-1636, a Microsoft SQL Elevation of Privilege Vulnerability, has a high severity rating but is considered less likely to be exploited. For a comprehensive understanding of this vulnerability, including its technical details and affected software configurations, refer to the NVD page or the links below.

Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.

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CVE-2021-1636 Report - Details, Severity, & Advisories

CVE-2021-1636 Report - Details, Severity, & Advisories

Twingate Team

Jan 25, 2024

CVE-2021-1636 is a high-severity vulnerability affecting Microsoft SQL Server versions 2012, 2014, 2016, 2017, and 2019. This elevation of privilege vulnerability can potentially allow an attacker to gain unauthorized access and control over affected systems. While the exploitability assessment suggests that exploitation is less likely, it's crucial for organizations using these SQL Server versions to apply the necessary security updates to protect their systems.

How do I know if I'm affected?

If you're using Microsoft SQL Server, you might be affected by the vulnerability. This issue impacts SQL Server versions 2012 (sp4), 2014 (sp3), 2016 (sp2), 2017, and 2019. To know if you're affected, check your SQL Server version and see if it matches any of the mentioned versions.

What should I do if I'm affected?

If you're affected by the vulnerability, follow these simple steps. First, identify your SQL Server version. Then, visit Microsoft's Security Update Guide to find the appropriate update for your version. Lastly, apply the security update to protect your system. Stay vigilant and keep your software up-to-date to prevent unauthorized access.

Is this in CISA’s Known Exploited Vulnerabilities Catalog?

Yes, CVE-2021-1636 is in CISA's Known Exploited Vulnerabilities Catalog. This vulnerability, known as Microsoft SQL Elevation of Privilege Vulnerability, was added on January 12, 2021. Although a specific due date and required action are not mentioned, it's important to apply the appropriate security updates provided by Microsoft to protect your system from potential unauthorized access.

Weakness enumeration

The weakness enumeration for this vulnerability is categorized as CWE-89, referring to SQL Injection, which involves improper neutralization of special elements in SQL commands.

For more details

CVE-2021-1636, a Microsoft SQL Elevation of Privilege Vulnerability, has a high severity rating but is considered less likely to be exploited. For a comprehensive understanding of this vulnerability, including its technical details and affected software configurations, refer to the NVD page or the links below.

Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.

CVE-2021-1636 Report - Details, Severity, & Advisories

Twingate Team

Jan 25, 2024

CVE-2021-1636 is a high-severity vulnerability affecting Microsoft SQL Server versions 2012, 2014, 2016, 2017, and 2019. This elevation of privilege vulnerability can potentially allow an attacker to gain unauthorized access and control over affected systems. While the exploitability assessment suggests that exploitation is less likely, it's crucial for organizations using these SQL Server versions to apply the necessary security updates to protect their systems.

How do I know if I'm affected?

If you're using Microsoft SQL Server, you might be affected by the vulnerability. This issue impacts SQL Server versions 2012 (sp4), 2014 (sp3), 2016 (sp2), 2017, and 2019. To know if you're affected, check your SQL Server version and see if it matches any of the mentioned versions.

What should I do if I'm affected?

If you're affected by the vulnerability, follow these simple steps. First, identify your SQL Server version. Then, visit Microsoft's Security Update Guide to find the appropriate update for your version. Lastly, apply the security update to protect your system. Stay vigilant and keep your software up-to-date to prevent unauthorized access.

Is this in CISA’s Known Exploited Vulnerabilities Catalog?

Yes, CVE-2021-1636 is in CISA's Known Exploited Vulnerabilities Catalog. This vulnerability, known as Microsoft SQL Elevation of Privilege Vulnerability, was added on January 12, 2021. Although a specific due date and required action are not mentioned, it's important to apply the appropriate security updates provided by Microsoft to protect your system from potential unauthorized access.

Weakness enumeration

The weakness enumeration for this vulnerability is categorized as CWE-89, referring to SQL Injection, which involves improper neutralization of special elements in SQL commands.

For more details

CVE-2021-1636, a Microsoft SQL Elevation of Privilege Vulnerability, has a high severity rating but is considered less likely to be exploited. For a comprehensive understanding of this vulnerability, including its technical details and affected software configurations, refer to the NVD page or the links below.