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CVE-2022-33682— Disabled Hostname Verification makes Brokers, Proxies vulnerable to MITM attack

Quick assessment

Affected
Apache Software Foundation Apache Pulsar
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 Pulsar是美国阿帕奇（Apache）基金会的一个用于云环境种，集消息、存储、轻量化函数式计算为一体的分布式消息流平台。该软件支持多租户、持久化存储、多机房跨区域数据复制，具有强一致性、高吞吐以及低延时的高可扩展流数据存储特性。 Apache Pulsar存在安全漏洞，该漏洞源于禁用主机名验证可能导致攻击者通过Proxy实现中间人攻击。以下版本受到影响：Apache Pulsar Broker、Proxy和WebSocket Proxy的2.7.0至2.7.4版本、2.8.0至2.8.3版

AI Predicted 7.4 Difficulty: Moderate EPSS 0.62% · P47

Possible ATT&CK Techniques 1 AI

T1071 · Application Layer Protocol
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I. Basic Information for CVE-2022-33682

Vulnerability Information
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Vulnerability Title
Disabled Hostname Verification makes Brokers, Proxies vulnerable to MITM attack
Source: CVE Program / CVE List V5
Vulnerability Description
TLS hostname verification cannot be enabled in the Pulsar Broker's Java Client, the Pulsar Broker's Java Admin Client, the Pulsar WebSocket Proxy's Java Client, and the Pulsar Proxy's Admin Client leaving intra-cluster connections and geo-replication connections vulnerable to man in the middle attacks, which could leak credentials, configuration data, message data, and any other data sent by these clients. The vulnerability is for both the pulsar+ssl protocol and HTTPS. An attacker can only take advantage of this vulnerability by taking control of a machine 'between' the client and the server. The attacker must then actively manipulate traffic to perform the attack by providing the client with a cryptographically valid certificate for an unrelated host. This issue affects Apache Pulsar Broker, Proxy, and WebSocket Proxy versions 2.7.0 to 2.7.4; 2.8.0 to 2.8.3; 2.9.0 to 2.9.2; 2.10.0; 2.6.4 and earlier.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
证书验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Pulsar 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Pulsar是美国阿帕奇（Apache）基金会的一个用于云环境种，集消息、存储、轻量化函数式计算为一体的分布式消息流平台。该软件支持多租户、持久化存储、多机房跨区域数据复制，具有强一致性、高吞吐以及低延时的高可扩展流数据存储特性。 Apache Pulsar存在安全漏洞，该漏洞源于禁用主机名验证可能导致攻击者通过Proxy实现中间人攻击。以下版本受到影响：Apache Pulsar Broker、Proxy和WebSocket Proxy的2.7.0至2.7.4版本、2.8.0至2.8.3版
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 Pulsar 2.10.0 -

II. Public POCs for CVE-2022-33682

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III. Intelligence Information for CVE-2022-33682

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Mailing List Discussions for CVE-2022-33682 (1)

Same Patch Batch · Apache Software Foundation · 2022-09-23 · 5 CVEs total

CVE-2022-26112 Pinot query endpoint and the realtime ingestion layer has a vulnerability in unprotected e
CVE-2022-24280 Apache Pulsar Proxy target broker address isn't validated
CVE-2022-33681 Improper Hostname Verification in Java Client and Proxy can expose authentication data via
CVE-2022-33683 Disabled Certificate Validation makes Broker, Proxy Admin Clients vulnerable to MITM attac

IV. Related Vulnerabilities

Same product: Apache Pulsar
Same vendor: Apache Software Foundation
Same weakness: CWE-295

V. Comments for CVE-2022-33682

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