Vulnerability in io.ratpack:ratpack-core (CVE-2019-17513)
Summary
Vulnerability in io.ratpack:ratpack-core (CVE-2019-17513). Data can be tampered with by attackers. Mitigation: upgrade to 1.7.5 or later.
Original description
The description as published by the source.
An issue was discovered in Ratpack before 1.7.5. Due to a misuse of the Netty library class DefaultHttpHeaders, there is no validation that headers lack HTTP control characters. Thus, if untrusted data is used to construct HTTP headers with Ratpack, HTTP Response Splitting can occur.
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-2019-17513 has been found in io.ratpack:ratpack-core.
Data can be tampered with by attackers.
What to do: upgrade io.ratpack:ratpack-core to 1.7.5 or later.
If unsure, ask your IT team or search "io.ratpack:ratpack-core CVE-2019-17513" on the vendor's site.
CVE-2019-17513 (io.ratpack:ratpack-core) — CWE-74
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 1.7.5 — apply immediately
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.
A vulnerability (CWE-74) exists in io.ratpack:ratpack-core.
Check the vendor advisory for the affected versions of io.ratpack:ratpack-core.
Severity: ?. Data can be tampered with by attackers.
Update to 1.7.5.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
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
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで io.ratpack:ratpack-core を使っているサービスとバージョンを洗い出す。
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2Apply patch patch
Upgrade io.ratpack:ratpack-core to 1.7.5ステージング環境で 1.7.5 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。
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3Post-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
References
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- advisory github.com
- advisory ratpack.io
- package github.com
- patch github.com
- patch github.com