Vulnerability in Siemens Simatic S7 300 Cpu Firmware (CVE-2015-2177)
Summary
Vulnerability in Siemens Simatic S7 300 Cpu Firmware (CVE-2015-2177). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
Siemens SIMATIC S7-300 CPU devices allow remote attackers to cause a denial of service (defect-mode transition) via crafted packets on (1) TCP port 102 or (2) Profibus.
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-2015-2177 has been found in Siemens Simatic S7 300 Cpu Firmware.
Risk of unauthorized operations or information disclosure. CVSS score: 7.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Siemens Simatic S7 300 Cpu Firmware CVE-2015-2177" on the vendor's site.
CVE-2015-2177 (Siemens Simatic S7 300 Cpu Firmware) — CWE-20 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
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-20) exists in Siemens Simatic S7 300 Cpu Firmware.
Check the vendor advisory for the affected versions of Siemens Simatic S7 300 Cpu Firmware.
Severity: High (CVSS 7.5/10). 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
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Siemens Simatic S7 300 Cpu Firmware を使っているサービスとバージョンを洗い出す。
-
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 securityfocus.com
- web securitytracker.com
- web siemens.com
- web cert-portal.siemens.com
- web ics-cert.us-cert.gov
- web exploit-db.com
- web nvd.nist.gov
- web exploit-db.com
- web github.com