Vulnerability in Belkin Bulldog Plus (CVE-2009-20009)
Summary
Vulnerability in Belkin Bulldog Plus (CVE-2009-20009). Risk of unauthorized operations or information disclosure. Exploitable via Authorization header.
Original description
The description as published by the source.
Belkin Bulldog Plus version 4.0.2 build 1219 contains a stack-based buffer overflow vulnerability in its web service authentication handler. When a specially crafted HTTP request is sent with an oversized Authorization header, the application fails to properly validate the input length before copying it into a fixed-size buffer, resulting in memory corruption and potential remote code execution. Exploitation requires network access and does not require prior authentication.
Source: NIST National Vulnerability Database NVD GitHub Advisory
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-2009-20009 has been found in Belkin Bulldog Plus.
Attackers can target a specific entry point like Authorization header over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Belkin Bulldog Plus CVE-2009-20009" on the vendor's site.
CVE-2009-20009 (Belkin Bulldog Plus) — CWE-121
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.
A vulnerability (CWE-121) exists in Belkin Bulldog Plus. Attackers reach the vulnerable code path via Authorization header.
Check the vendor advisory for the affected versions of Belkin Bulldog Plus. Attack surface: Authorization header.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
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 Belkin Bulldog Plus 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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2Post-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。
References
- web raw.githubusercontent.com
- web s3.belkin.com
- web exploit-db.com
- web fortiguard.com
- web vulncheck.com
- web nvd.nist.gov
- web github.com