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CVE-2021-44228 Report - Details, Severity, Advisories and More

CVE-2021-44228 Report - Details, Severity, Advisories and More

Twingate Team

Dec 16, 2023

CVE-2021-44228 is a critical vulnerability affecting Apache Log4j2, a widely used logging library. With a severity score of 10.0, this vulnerability allows attackers to execute arbitrary code on affected systems by exploiting certain features in Log4j2. A wide range of systems, including those from major vendors like Siemens, Intel, and Cisco, may be impacted if they use vulnerable versions of Apache Log4j2 in their software configurations. It's essential for organizations to update their systems to mitigate the risks associated with this vulnerability.

How do I know if I'm affected by CVE-2021-44228?

To determine if you're affected by the CVE-2021-44228 vulnerability, also known as Log4Shell, you need to check if you're using Apache Log4j2 versions 2.0-beta9 through 2.15.0, excluding security releases 2.12.2, 2.12.3, and 2.3.1. If you're using a vulnerable version of Apache Log4j2, it's crucial to update your systems to mitigate the risks associated with this critical vulnerability.

What should I do if I'm affected by CVE-2021-44228?

If you're affected by the CVE-2021-44228 vulnerability, it's crucial to update your systems as soon as possible. Follow these steps: 1) Identify if you're using a vulnerable version of Apache Log4j2, 2) Check for available patches or updates from your software vendor, and 3) Apply the updates or patches according to the vendor's instructions. For more information, refer to the National Vulnerability Database and your software vendor's support resources below.

Where can I go to learn more?

For further information and resources on the CVE-2021-44228 vulnerability, refer to the following advisories and tools:

Is CVE-2021-44228 in CISA’s Known Exploited Vulnerabilities Catalog?

The CVE-2021-44228 vulnerability, also known as Apache Log4j2 Remote Code Execution Vulnerability, is indeed listed in CISA's Known Exploited Vulnerabilities Catalog. It was added on December 10, 2021, and the due date for required action was December 24, 2021. The acceptable remediation actions include applying updates or removing affected assets from networks. Temporary mitigations were acceptable only until updates became available.

Weakness enumeration

The CVE-2021-44228 vulnerability involves weaknesses like improper neutralization of special elements, input validation issues, uncontrolled resource consumption, and deserialization of untrusted data. These weaknesses can lead to remote code execution on affected systems.

For more details

The CVE-2021-44228 vulnerability is a critical issue that requires immediate attention and remediation. For a comprehensive understanding and more details on the CVE-2021-44228 vulnerability, we recommend visiting the National Vulnerability Database page.

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

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CVE-2021-44228 Report - Details, Severity, Advisories and More

CVE-2021-44228 Report - Details, Severity, Advisories and More

Twingate Team

Dec 16, 2023

CVE-2021-44228 is a critical vulnerability affecting Apache Log4j2, a widely used logging library. With a severity score of 10.0, this vulnerability allows attackers to execute arbitrary code on affected systems by exploiting certain features in Log4j2. A wide range of systems, including those from major vendors like Siemens, Intel, and Cisco, may be impacted if they use vulnerable versions of Apache Log4j2 in their software configurations. It's essential for organizations to update their systems to mitigate the risks associated with this vulnerability.

How do I know if I'm affected by CVE-2021-44228?

To determine if you're affected by the CVE-2021-44228 vulnerability, also known as Log4Shell, you need to check if you're using Apache Log4j2 versions 2.0-beta9 through 2.15.0, excluding security releases 2.12.2, 2.12.3, and 2.3.1. If you're using a vulnerable version of Apache Log4j2, it's crucial to update your systems to mitigate the risks associated with this critical vulnerability.

What should I do if I'm affected by CVE-2021-44228?

If you're affected by the CVE-2021-44228 vulnerability, it's crucial to update your systems as soon as possible. Follow these steps: 1) Identify if you're using a vulnerable version of Apache Log4j2, 2) Check for available patches or updates from your software vendor, and 3) Apply the updates or patches according to the vendor's instructions. For more information, refer to the National Vulnerability Database and your software vendor's support resources below.

Where can I go to learn more?

For further information and resources on the CVE-2021-44228 vulnerability, refer to the following advisories and tools:

Is CVE-2021-44228 in CISA’s Known Exploited Vulnerabilities Catalog?

The CVE-2021-44228 vulnerability, also known as Apache Log4j2 Remote Code Execution Vulnerability, is indeed listed in CISA's Known Exploited Vulnerabilities Catalog. It was added on December 10, 2021, and the due date for required action was December 24, 2021. The acceptable remediation actions include applying updates or removing affected assets from networks. Temporary mitigations were acceptable only until updates became available.

Weakness enumeration

The CVE-2021-44228 vulnerability involves weaknesses like improper neutralization of special elements, input validation issues, uncontrolled resource consumption, and deserialization of untrusted data. These weaknesses can lead to remote code execution on affected systems.

For more details

The CVE-2021-44228 vulnerability is a critical issue that requires immediate attention and remediation. For a comprehensive understanding and more details on the CVE-2021-44228 vulnerability, we recommend visiting the National Vulnerability Database page.

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

CVE-2021-44228 Report - Details, Severity, Advisories and More

Twingate Team

Dec 16, 2023

CVE-2021-44228 is a critical vulnerability affecting Apache Log4j2, a widely used logging library. With a severity score of 10.0, this vulnerability allows attackers to execute arbitrary code on affected systems by exploiting certain features in Log4j2. A wide range of systems, including those from major vendors like Siemens, Intel, and Cisco, may be impacted if they use vulnerable versions of Apache Log4j2 in their software configurations. It's essential for organizations to update their systems to mitigate the risks associated with this vulnerability.

How do I know if I'm affected by CVE-2021-44228?

To determine if you're affected by the CVE-2021-44228 vulnerability, also known as Log4Shell, you need to check if you're using Apache Log4j2 versions 2.0-beta9 through 2.15.0, excluding security releases 2.12.2, 2.12.3, and 2.3.1. If you're using a vulnerable version of Apache Log4j2, it's crucial to update your systems to mitigate the risks associated with this critical vulnerability.

What should I do if I'm affected by CVE-2021-44228?

If you're affected by the CVE-2021-44228 vulnerability, it's crucial to update your systems as soon as possible. Follow these steps: 1) Identify if you're using a vulnerable version of Apache Log4j2, 2) Check for available patches or updates from your software vendor, and 3) Apply the updates or patches according to the vendor's instructions. For more information, refer to the National Vulnerability Database and your software vendor's support resources below.

Where can I go to learn more?

For further information and resources on the CVE-2021-44228 vulnerability, refer to the following advisories and tools:

Is CVE-2021-44228 in CISA’s Known Exploited Vulnerabilities Catalog?

The CVE-2021-44228 vulnerability, also known as Apache Log4j2 Remote Code Execution Vulnerability, is indeed listed in CISA's Known Exploited Vulnerabilities Catalog. It was added on December 10, 2021, and the due date for required action was December 24, 2021. The acceptable remediation actions include applying updates or removing affected assets from networks. Temporary mitigations were acceptable only until updates became available.

Weakness enumeration

The CVE-2021-44228 vulnerability involves weaknesses like improper neutralization of special elements, input validation issues, uncontrolled resource consumption, and deserialization of untrusted data. These weaknesses can lead to remote code execution on affected systems.

For more details

The CVE-2021-44228 vulnerability is a critical issue that requires immediate attention and remediation. For a comprehensive understanding and more details on the CVE-2021-44228 vulnerability, we recommend visiting the National Vulnerability Database page.