Cross-Site Request Forgery (CSRF) in D Link Dcs 936L (CVE-2017-7851)
Summary
Vulnerability in D Link Dcs 936L (CVE-2017-7851). Successful exploitation can lead to full system takeover. Exploitable via Referer header.
Original description
The description as published by the source.
D-Link DCS-936L devices with firmware before 1.05.07 have an inadequate CSRF protection mechanism that requires the device's IP address to be a substring of the HTTP Referer header.
Source: NIST National Vulnerability Database NVD
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-2017-7851 has been found in D Link Dcs 936L.
Attackers can target a specific entry point like Referer header over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "D Link Dcs 936L CVE-2017-7851" on the vendor's site.
CVE-2017-7851 (D Link Dcs 936L) — CWE-352 / CVSS v3 8.8
Attack vector: remote (network-reachable) / unauthenticated
Attack surface: Referer 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.
CSRF (CWE-352) exists in D Link Dcs 936L. Attackers reach the vulnerable code path via Referer header without authentication.
Check the vendor advisory for the affected versions of D Link Dcs 936L. Attack surface: Referer header.
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover.
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 D Link Dcs 936L 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
- exploit qualys.com
- patch ftp2.dlink.com