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CVE-2021-39235— Access mode of block tokens are not enforced

Quick assessment

Affected
Apache Software Foundation Apache Ozone
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Ozone是一个应用软件。一个面向Hadoop和云原生环境的可伸缩，冗余和分布式对象存储。 Apache Ozone 中存在输入验证错误漏洞，该漏洞源于产品的Ozone Datanode未检查block令牌的访问模式参数。攻击者可通过该漏洞使用具有READ权限的令牌执行写操作。以下产品及版本受到影响： Apache Ozone 1.2.0 之前版本。

AI Predicted 8.1 Difficulty: Easy EPSS 1.55% · P74
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I. Basic Information for CVE-2021-39235

Vulnerability Information
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Vulnerability Title
Access mode of block tokens are not enforced
Source: CVE Program / CVE List V5
Vulnerability Description
In Apache Ozone before 1.2.0, Ozone Datanode doesn't check the access mode parameter of the block token. Authenticated users with valid READ block token can do any write operation on the same block.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
关键资源的不正确权限授予
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Ozone 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Ozone是一个应用软件。一个面向Hadoop和云原生环境的可伸缩，冗余和分布式对象存储。 Apache Ozone 中存在输入验证错误漏洞，该漏洞源于产品的Ozone Datanode未检查block令牌的访问模式参数。攻击者可通过该漏洞使用具有READ权限的令牌执行写操作。以下产品及版本受到影响： Apache Ozone 1.2.0 之前版本。
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 Ozone 1.0 ~ 1.0 -

II. Public POCs for CVE-2021-39235

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III. Intelligence Information for CVE-2021-39235

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Mailing List Discussions for CVE-2021-39235 (2)

Same Patch Batch · Apache Software Foundation · 2021-11-19 · 8 CVEs total

CVE-2021-41532 Unauthenticated access to Ozone Recon HTTP endpoints
CVE-2021-39236 Owners of the S3 tokens are not validated
CVE-2021-39234 Raw block data can be read bypassing ACL/authorization
CVE-2021-39233 Container-related datanode operations can be called without authorization
CVE-2021-39232 Missing admin check for SCM related admin commands
CVE-2021-39231 Missing authentication/authorization on internal RPC endpoints
CVE-2021-36372 Original block tokens are persisted and can be retrieved

IV. Related Vulnerabilities

Same product: Apache Ozone
Same vendor: Apache Software Foundation
Same weakness: CWE-732

V. Comments for CVE-2021-39235

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