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CVE-2021-39133

Cross-Site Request Forgery (CSRF) in org.rundeck:rundeck-core (CVE-2021-39133)

Summary

Vulnerability in org.rundeck:rundeck-core (CVE-2021-39133). Successful exploitation can lead to full system takeover. Exploitable via admin. Mitigation: upgrade to 3.3.14 or later.

Original description

The description as published by the source.

Impact

A user with admin access to the system resource type is potentially vulnerable to a CSRF attack that could cause the server to run untrusted code on all Rundeck editions.

Patches

Available in Rundeck 3.4.3 and 3.3.14

Workarounds

Please visit https://rundeck.com/security for information about specific workarounds.

For more information

If you have any questions or comments about this advisory:

To report security issues to Rundeck please use the form at https://rundeck.com/security

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-2021-39133 has been found in org.rundeck:rundeck-core.
Attackers can target a specific entry point like admin over the network to misuse the product.
Successful exploitation can lead to full system takeover.
What to do: upgrade org.rundeck:rundeck-core to 3.3.14 or later.
If unsure, ask your IT team or search "org.rundeck:rundeck-core CVE-2021-39133" on the vendor's site.

CVE-2021-39133 (org.rundeck:rundeck-core) — CWE-352
Attack vector: remote (network-reachable) / no user interaction
Attack surface: admin / system
Patched: 3.3.14 — apply immediately
Workaround: Please visit https://rundeck.com/security for information about specific workarounds.
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

CSRF (CWE-352) exists in org.rundeck:rundeck-core. Attackers reach the vulnerable code path via admin.

📍 Affected scope

Check the vendor advisory for the affected versions of org.rundeck:rundeck-core. Attack surface: admin / system.

🔥 Severity

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

🔧 How to fix

Update to 3.3.14.

🛡️ Workaround

Workaround: Please visit https://rundeck.com/security for information about specific workarounds.

🔍 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. 1
    Identify exposure identify 
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで org.rundeck:rundeck-core を使っているサービスとバージョンを洗い出す。

  2. 2
    Apply temporary workaround mitigate 
    Please visit [https://rundeck.com/security](https://rundeck.com/security) for information about specific workarounds.

    パッチが適用されるまでの応急処置として、Please visit https://rundeck.com/security for information about specific workarounds. を実施。回避策の副作用 (機能低下) を確認した上で。

  3. 3
    Apply patch patch 
    Upgrade org.rundeck:rundeck-core to 3.3.14

    ステージング環境で 3.3.14 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。

  4. 4
    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

Maven org.rundeck:rundeck-core
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.14"}]}]

References

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