XXE (XML External Entity) in Schneider Electric Wonderware Historian Client (CVE-2017-7907)
Summary
Vulnerability in Schneider Electric Wonderware Historian Client (CVE-2017-7907). Confidential information can be exposed externally.
Original description
The description as published by the source.
An Improper XML Parser Configuration issue was discovered in Schneider Electric Wonderware Historian Client 2014 R2 SP1 and prior. An improperly restricted XML parser (with improper restriction of XML external entity reference, or XXE) may allow an attacker to enter malicious input through the application which could cause a denial of service or disclose file contents from a server or connected network.
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-2017-7907 has been found in Schneider Electric Wonderware Historian Client.
Confidential information can be exposed externally. CVSS score: 6.6/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Schneider Electric Wonderware Historian Client CVE-2017-7907" on the vendor's site.
CVE-2017-7907 (Schneider Electric Wonderware Historian Client) — CWE-611 / CVSS v3 6.6
Attack vector: local
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-611) exists in Schneider Electric Wonderware Historian Client.
Check the vendor advisory for the affected versions of Schneider Electric Wonderware Historian Client.
Severity: Medium (CVSS 6.6/10). Confidential information can be exposed externally.
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 Schneider Electric Wonderware Historian Client 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
- advisory securityfocus.com
- advisory ics-cert.us-cert.gov
- patch software.schneider-electric.com
- web securitytracker.com