Vulnerability in Apache Hadoop (CVE-2020-9492)

Summary

Vulnerability in Apache Hadoop (CVE-2020-9492). Successful exploitation can lead to full system takeover. Exploitable via Authorization header.

Original description

The description as published by the source.

In Apache Hadoop 3.2.0 to 3.2.1, 3.0.0 to 3.1.3, and 2.0.0 to 2.10.0, WebHDFS client might send SPNEGO authorization header to remote URL without proper verification.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2020-9492 has been found in Apache Hadoop.
Attackers can target a specific entry point like Authorization header over the network to misuse the product.
Successful exploitation can lead to full system takeover.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Apache Hadoop CVE-2020-9492" on the vendor's site.

CVE-2020-9492 (Apache Hadoop)
Attack vector: remote (network-reachable) / no user interaction
Attack surface: Authorization header
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (unclassified) exists in Apache Hadoop. Attackers reach the vulnerable code path via Authorization header.

📍 Affected scope

Check the vendor advisory for the affected versions of Apache Hadoop. Attack surface: Authorization header.

🔥 Severity

Severity: ?. Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposure identify
```
Audit SBOM/dependencies for affected components.
```
資産台帳・SBOM・依存マニフェストで Apache Hadoop を使っているサービスとバージョンを洗い出す。
2
Post-deployment verification verify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Bitnami solr

[{"type":"SEMVER","events":[{"introduced":"8.6.0"},{"fixed":"8.6.1"},{"introduced":"8.6.2"},{"fixed":"8.6.3"}]}]