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🛡️ GHSA-28gg-8qqj-fhh5 — geoip-processor

⚪ Unknown ✅ No Known Exploit CWE-295 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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:

1. Ensure your Java runtime is configured to disable deprecated SSL protocols

2. Use network-level controls to enforce TLS-only connections

3. Use external tools to verify that deprecated SSL protocols are not allowed.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

Weakness class

GHSA-28gg-8qqj-fhh5 is classified as CWE-295: Improper Certificate Validation. A TLS certificate is accepted without proper verification, so a man-in-the-middle can present their own.

Affected software

GHSA-28gg-8qqj-fhh5 is recorded against 1 package.

  • org.opensearch.dataprepper.plugins:geoip-processor (from 2.4.0 up to 2.12.2)

Timeline and source

Published on 15 October 2025 and last revised on 16 October 2025. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Web)
github.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE CWE-295
Public Exploit ✅ No
Source OSV
Published 2025-10-15
Updated 2026-08-20
Modified 2025-10-16
Fix URL N/A

Affected Packages

Software From version Fixed in
org.opensearch.dataprepper.plugins:geoip-processor 2.4.0 2.12.2

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