CVE-2023-30756
Siemens · published 2024-09-10
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by Siemens AG via the CVE Program.
A vulnerability has been identified in SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.5.20), SIMATIC CP 1243-7 LTE (All versions < V3.5.20), SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0) (All versions < V3.5.20), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions), SIMATIC IPC DiagBase (All versions), SIMATIC IPC DiagMonitor (All versions), SIMATIC WinCC Runtime Advanced (All versions), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.4.8), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.4.8). The web server of the affected devices do not properly handle certain errors when using the Expect HTTP request header, resulting in NULL dereference. This could allow a remote attacker with no privileges to cause a denial of service condition in the system.
Status at the source
- NVD status: Deferred — NVD has not analysed this CVE.
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) | 0 – before V3.5.20: affected |
| Siemens | SIMATIC CP 1243-1 (incl. SIPLUS variants) | 0 – before V3.5.20: affected |
| Siemens | SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) | 0 – before V3.5.20: affected |
| Siemens | SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) | 0 – before V3.5.20: affected |
| Siemens | SIMATIC CP 1243-7 LTE | 0 – before V3.5.20: affected |
| Siemens | SIMATIC CP 1243-8 IRC | 0 – before V3.5.20: affected |
| Siemens | SIMATIC HMI Comfort Panels (incl. SIPLUS variants) | All versions: affected |
| Siemens | SIMATIC IPC DiagBase | 0 – before *: affected |
| Siemens | SIMATIC IPC DiagMonitor | All versions: affected |
| Siemens | SIMATIC WinCC Runtime Advanced | All versions: affected |
| Siemens | SIPLUS TIM 1531 IRC | 0 – before V2.4.8: affected |
| Siemens | TIM 1531 IRC | 0 – before V2.4.8: affected |
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 4.0: 8.2 HIGH — as published by Siemens AG (Secondary)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1: 5.9 MEDIUM — as published by Siemens AG (Secondary)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - SSVC — CISA's assessment (SSVC 2.0.3, CISA Coordinator): Exploitation: none · Automatable: no · Technical impact: partial
DeSpy does not score records. These are the sources' own values.
Weaknesses
Sources
References the source lists
Source dates: published 2024-09-10, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
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