CVE-2022-34820
Last modified
CVE-2022-34820 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC CP 1243-8 IRC (All versions < V3.3.46), SIMATIC CP 1542SP-1 IRC (All versions >= V2.0 < V2.2.28), SIMATIC CP 1543-1 (All versions < V3.0.22), SIMATIC CP 1543SP-1 (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS NET CP 1242-7 V2 (All versions < V3.3.46), SIPLUS NET CP 1543-1 (All versions < V3.0.22), SIPLUS S7-1200 CP 1243-1 (All versions < V3.3.46), SIPLUS S7-1200 CP 1243-1 RAIL (All versions < V3.3.46). The application does not correctly escape some user provided fields during the authentication process. EPSS estimates a 1.65% chance of exploitation in the next 30 days.
Description
A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC CP 1243-8 IRC (All versions < V3.3.46), SIMATIC CP 1542SP-1 IRC (All versions >= V2.0 < V2.2.28), SIMATIC CP 1543-1 (All versions < V3.0.22), SIMATIC CP 1543SP-1 (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS NET CP 1242-7 V2 (All versions < V3.3.46), SIPLUS NET CP 1543-1 (All versions < V3.0.22), SIPLUS S7-1200 CP 1243-1 (All versions < V3.3.46), SIPLUS S7-1200 CP 1243-1 RAIL (All versions < V3.3.46). The application does not correctly escape some user provided fields during the authentication process. This could allow an attacker to inject custom commands and execute arbitrary code with elevated privileges.
Metrics
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Simatic Cp 1242-7 V2 Firmware | < 3.3.46 |
| Siemens | Simatic Cp 1243-1 Firmware | < 3.3.46 |
| Siemens | Simatic Cp 1243-7 Lte Eu Firmware | < 3.3.46 |
| Siemens | Simatic Cp 1243-7 Lte Us Firmware | < 3.3.46 |
| Siemens | Simatic Cp 1243-8 Irc Firmware | < 3.3.46 |
| Siemens | Simatic Cp 1542sp-1 Irc Firmware | >= 2.0, < 2.2.28 |
| Siemens | Simatic Cp 1543-1 Firmware | < 3.0.22 |
| Siemens | Simatic Cp 1543sp-1 Firmware | >= 2.0, < 2.2.28 |
| Siemens | Siplus Et 200sp Cp 1542sp-1 Irc Tx Rail Firmware | >= 2.0, < 2.2.28 |
| Siemens | Siplus Et 200sp Cp 1543sp-1 Isec Firmware | >= 2.0, < 2.2.28 |
| Siemens | Siplus Et 200sp Cp 1543sp-1 Isec Tx Rail Firmware | >= 2.0, < 2.2.28 |
| Siemens | Siplus Net Cp 1242-7 V2 Firmware | < 3.3.46 |
| Siemens | Siplus Net Cp 1543-1 Firmware | < 3.0.22 |
| Siemens | Siplus S7-1200 Cp 1243-1 Firmware | < 3.3.46 |
| Siemens | Siplus S7-1200 Cp 1243-1 Rail Firmware | < 3.3.46 |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-517377.pdfPatch, Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-517377.pdfPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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