4.8

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3.1

-

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GHSA-28gg-8qqj-fhh5

GHSA-28gg-8qqj-fhh5: OpenSearch Data Prepper uses deprecated SSL protocol identifier

Impact

The GeoIP processor and Kafka source and buffer were using the deprecated "SSL" protocol identifier when creating SSL contexts, potentially allowing the use of insecure SSL protocols instead of modern TLS versions.

Multiple Data Prepper plugins used SSLContext.getInstance("SSL") which could potentially allow the use of deprecated SSL protocols (SSLv2, SSLv3) that have known security vulnerabilities. While modern Java implementations typically default to secure TLS versions even with the "SSL" identifier, explicitly using "TLS" ensures that only secure TLS protocols are negotiated.

The affected components were:

GeoIP Processor: The DBSource.initiateSSL() method used for downloading GeoIP databases from external sources
Kafka Plugin: Both CustomClientSslEngineFactory and InsecureSslEngineFactory classes used for Kafka client connections

This could potentially allow connections to negotiate weaker SSL protocols instead of enforcing modern TLS versions, reducing the security of data transmission.

Patches

Data Prepper 2.12.2 contains a fix for this issue.

Workarounds

If upgrading is not immediately possible:

Ensure your Java runtime is configured to disable deprecated SSL protocols
Use network-level controls to enforce TLS-only connections
Use external tools to verify that deprecated SSL protocols are not allowed.

(GitHub Advisory)

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GHSA-28gg-8qqj-fhh5

GHSA-28gg-8qqj-fhh5:

4.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
org.opensearch.dataprepper.plugins:geoip-processor	maven	>= 2.4.0, < 2.12.2	2.12.2

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability, identified as GHSA-28gg-8qqj-fhh5, stems from the use of the deprecated protocol identifier "SSL" when creating SSLContext instances in multiple OpenSearch Data Prepper plugins. Modern Java versions may default to more secure TLS protocols, but explicitly using SSLContext.getInstance("SSL") can allow for negotiation of older, insecure SSL versions like SSLv2 and SSLv3, which are susceptible to attacks like POODLE. An attacker in a privileged network position could potentially perform a man-in-the-middle (MITM) attack and downgrade the connection's security.

The provided commit fa21a601512b5193c4b5c84a5b30c6301dab0475 directly addresses this issue by replacing all instances of SSLContext.getInstance("SSL") with SSLContext.getInstance("TLS"). This ensures that only secure TLS protocols are used for the connections.

The analysis of the patch identified three functions where this insecure call was made:

org.opensearch.dataprepper.plugins.geoip.extension.databasedownload.DBSource.initiateSSL: This function is responsible for setting up the SSL connection to download GeoIP databases. A compromised connection here could lead to tampered database files being downloaded.
org.opensearch.dataprepper.plugins.kafka.util.CustomClientSslEngineFactory.createClientSslEngine: This function creates the SSL engine for Kafka client connections. A protocol downgrade could expose sensitive data being transmitted to or from Kafka.
org.opensearch.dataprepper.plugins.kafka.util.InsecureSslEngineFactory.createClientSslEngine: While this factory is inherently insecure due to its trust-all nature, the use of "SSL" is an additional, distinct vulnerability. The patch correctly enforces the use of "TLS" even in this context.

These three functions are the direct locations of the vulnerability. During runtime, any operation involving GeoIP database downloads or Kafka communication over SSL/TLS would invoke one of these functions, making them the primary indicators of this vulnerability being present in a running system.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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4.8

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GHSA-28gg-8qqj-fhh5: OpenSearch Data Prepper uses deprecated SSL protocol identifier

Impact

Patches

Workarounds

GHSA-28gg-8qqj-fhh5:

4.8

-

Basic Information

Basic Information

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Technical Details

Technical Details

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Root Cause Analysis

Vulnerable functions

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WAF Protection Rules

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Reasoning

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Root Cause Analysis

Vulnerable functions

GHSA-28gg-8qqj-fhh5: OpenSearch Data Prepper uses deprecated SSL protocol identifier

Impact

Patches

Workarounds

Technical Details

4.8

4.8

Basic Information

Basic Information

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