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CVE Record

CVE-2018-11447: A vulnerability has been identified in SCALANCE M875 (All versions).

A vulnerability has been identified in SCALANCE M875 (All versions). The web interface on port 443/tcp could allow a Cross-Site Request Forgery (CSRF) attack if an unsuspecting user is tricked into accessing a malicious link. Successful exploitation requires user interaction by an legitimate user, who must be authenticated to the web interface as administrative user. A successful attack could allow an attacker to interact with the web interface as an administrative user. This could allow the attacker to read or modify the device configuration, or to exploit other vulnerabilities that require authentication as administrative user. At the time of advisory publication no public exploitation of this security vulnerability was known.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This flaw lets a malicious website abuse an already logged-in SCALANCE M875 administrator’s browser to act against the device web interface. If successful, it could let an attacker read or change device configuration. It requires an authenticated administrative user to click or visit malicious content.

Executive priority

Prioritize if these devices support critical network connectivity or are administered from general-purpose workstations. This is not described as remotely exploitable without admin interaction, but unauthorized configuration changes on network infrastructure can create business-impacting outages or security gaps.

Technical view

CVE-2018-11447 affects Siemens SCALANCE M875, all versions. The HTTPS web interface on 443/tcp is susceptible to CSRF when an authenticated administrative user is tricked into a malicious link. Successful abuse could perform administrative web actions, including configuration read or modification, and may assist exploitation of other admin-authenticated vulnerabilities.

Likely exposure

Exposure is most likely where SCALANCE M875 administrative web interfaces are reachable from user browsing environments, shared networks, or the internet. Risk is lower when administration is isolated to trusted management hosts and administrators avoid untrusted browsing while authenticated.

Exploitation context

The source says exploitation requires user interaction by a legitimate administrative user authenticated to the web interface. The Siemens advisory text stated no known public exploitation at publication. The CVE is not listed as KEV in the provided bundle.

Researcher notes

The bundle describes CSRF behavior but lists CWE-121, which appears inconsistent with the described weakness. No CVSS vector, patch version, or detailed mitigation text is included in the provided sources, so remediation should be confirmed against Siemens SSA-977428.

Mitigation direction

  • Review Siemens SSA-977428 for current vendor guidance and updates.
  • Limit web administration to trusted management networks and hosts.
  • Avoid browsing untrusted sites while authenticated to device administration.
  • Use administrative session hygiene: log out after configuration work.
  • Monitor for unexpected device configuration changes.

Validation and detection

  • Inventory all Siemens SCALANCE M875 devices and recorded versions.
  • Identify where port 443/tcp administration is reachable.
  • Confirm administrative access is limited to approved management paths.
  • Review recent configuration changes for unauthorized activity.
  • Check whether Siemens guidance has been applied to each device.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-121: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2018-11447 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Siemens AGSCALANCE M875SCALANCE M875 All versionsListed
Weakness

CWE details

CWE-121

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-121 · source CWE mapping

Stack-based Buffer Overflow

Stack-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs