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CVE-2021-38153— Timing Attack Vulnerability for Apache Kafka Connect and Clients

Quick assessment

Affected
Apache Software Foundation Apache Kafka
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Kafka是美国阿帕奇（Apache）基金会的一套开源的分布式流媒体平台。该平台能够获取实时数据，用于构建对数据流的变化进行实时反应的应用程序。 Apache Kafka 存在安全漏洞，该漏洞源于 Apache Kafka 中的某些组件使用Arrays.equals来验证密码或密钥，容易受到定时攻击。本地用户可以滥用Arrays.equals来暴力破解访问凭据并提升系统权限。

AI Predicted 5.3 Difficulty: Moderate EPSS 6.20% · P93

Possible ATT&CK Techniques 1 AI

T1110 · Brute Force
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I. Basic Information for CVE-2021-38153

Vulnerability Information
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Vulnerability Title
Timing Attack Vulnerability for Apache Kafka Connect and Clients
Source: CVE Program / CVE List V5
Vulnerability Description
Some components in Apache Kafka use `Arrays.equals` to validate a password or key, which is vulnerable to timing attacks that make brute force attacks for such credentials more likely to be successful. Users should upgrade to 2.8.1 or higher, or 3.0.0 or higher where this vulnerability has been fixed. The affected versions include Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.7.1, and 2.8.0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Kafka 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Kafka是美国阿帕奇（Apache）基金会的一套开源的分布式流媒体平台。该平台能够获取实时数据，用于构建对数据流的变化进行实时反应的应用程序。 Apache Kafka 存在安全漏洞，该漏洞源于 Apache Kafka 中的某些组件使用Arrays.equals来验证密码或密钥，容易受到定时攻击。本地用户可以滥用Arrays.equals来暴力破解访问凭据并提升系统权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Kafka Apache Kafka 2.0.x ~ 2.0.1 -

II. Public POCs for CVE-2021-38153

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III. Intelligence Information for CVE-2021-38153

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Vendor Advisories for CVE-2021-38153 (3)

Mailing List Discussions for CVE-2021-38153 (6)

IV. Related Vulnerabilities

Same product: Apache Kafka
Same vendor: Apache Software Foundation
Same weakness: CWE-203

V. Comments for CVE-2021-38153

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