Security readout for executives and security teams
Plain-English summary
This issue can knock the web server offline on affected Siemens SICAM A8000 controllers using unauthenticated network traffic to TCP ports 80 or 443. Recovery requires rebooting the device. For operations teams, the business concern is loss of management availability on industrial equipment, not data theft or code execution based on the supplied sources.
Executive priority
Prioritize remediation for exposed or operationally important SICAM A8000 systems. The issue is availability-focused, but a forced loss of the web interface on industrial equipment can disrupt monitoring, maintenance, and incident response.
Technical view
CVE-2018-13798 affects Siemens SICAM A8000 CP-8000 and CP-802X before V14, and CP-8050 before V2.00. Specially crafted packets to the embedded web server on 80/TCP or 443/TCP can trigger a denial-of-service condition without authentication, privileges, or user interaction. Public exploit code was reported at advisory update time.
Likely exposure
Exposure is most likely where SICAM A8000 web interfaces are reachable from broad plant networks, remote access paths, or untrusted segments. Internet exposure would raise urgency, but the supplied sources only establish required network access to TCP 80 or 443.
Exploitation context
The bundle says public exploit code existed at the advisory update. It does not show CISA KEV listing or confirmed active exploitation. Treat this as a credible availability risk because exploitation is remote, unauthenticated, and recovery requires rebooting the device.
Researcher notes
Avoid assuming impact beyond web server denial of service. The provided sources do not claim code execution, credential theft, persistence, or active exploitation. Key evidence gaps are missing CVSS details in the bundle and no supplied confirmation of real-world exploitation.
Mitigation direction
- Upgrade CP-8000 and CP-802X systems to V14 or later.
- Upgrade CP-8050 systems to V2.00 or later.
- Restrict TCP 80 and 443 access to trusted management networks.
- Review Siemens SSA-579309 before maintenance or production rollout.
- Plan reboot windows for affected devices if web service recovery is required.
Validation and detection
- Inventory SICAM A8000 CP-8000, CP-802X, and CP-8050 devices.
- Verify firmware versions against the affected version thresholds.
- Confirm whether TCP 80 or 443 is reachable from untrusted networks.
- Review remote access paths, jump hosts, and firewall rules.
- Check device availability logs for unexplained web server outages.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-13798 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://cert-portal.siemens.com/productcert/pdf/ssa-579309.pdfCVE reference · x_refsource_CONFIRM
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.