Security readout for executives and security teams
Plain-English summary
Siemens RUGGEDCOM RST2228 and RST2228P switches before V5.9.0 can expose a MACsec key to a logged-in low-privileged user. That key could let the user decrypt protected Ethernet traffic intended for authorized recipients. This is not a remote unauthenticated takeover, but it can undermine traffic confidentiality in industrial networks.
Executive priority
Treat this as a targeted confidentiality risk for industrial network traffic. Prioritize remediation where these switches protect sensitive operational communications or where many users can access web management.
Technical view
The affected web server discloses the MACsec key in clear text to an authenticated low-privileged user. The CVSS v3.1 score is 4.3 with network access, low attack complexity, low privileges, no user interaction, and low confidentiality impact. Affected versions are RUGGEDCOM RST2228 and RST2228P before V5.9.0.
Likely exposure
Exposure is limited to environments running Siemens RUGGEDCOM RST2228 or RST2228P before V5.9.0 with web management reachable to authenticated low-privileged users.
Exploitation context
The bundle marks KEV as false, so there is no provided evidence of active exploitation. The CVSS temporal vector indicates proof-of-concept exploit maturity, but no exploit details are provided here.
Researcher notes
Evidence is limited to the CVE record and Siemens advisory reference. The core issue is cleartext MACsec key disclosure through the device web server after low-privileged authentication. Validate product, firmware, management-plane reachability, and post-remediation key hygiene.
Mitigation direction
- Confirm Siemens advisory guidance for SSA-170375.
- Upgrade affected RST2228 and RST2228P devices to V5.9.0 or later.
- Restrict web management access to trusted administration networks.
- Review low-privileged accounts on affected devices.
- Rotate MACsec keys if exposure is suspected.
Validation and detection
- Inventory RUGGEDCOM RST2228 and RST2228P firmware versions.
- Identify devices running versions earlier than V5.9.0.
- Confirm whether web management is reachable by low-privileged users.
- Review device access logs for unexpected authenticated management activity.
- Verify MACsec key rotation after remediation, where applicable.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
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CWE-200: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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.
Open ATT&CK lookupCVE-2023-52238 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
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.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/html/ssa-170375.htmlCVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.