RCE in Siemens Simatic Cp 1242-7 V2
CVE-2022-34820
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: +0.001
Affected products
- Siemens Simatic Cp 1242-7 V2 — versions All versions < V3.3.46
- Siemens Simatic Cp 1242-7 V2
- Siemens Simatic Cp 1242-7 V2 Firmware
- Siemens Simatic Cp 1243-1 — versions All versions < V3.3.46
- Siemens Simatic Cp 1243-1
- Siemens Simatic Cp 1243-1 Firmware
- Siemens Simatic Cp 1243-7 Lte Eu — versions All versions < V3.3.46
- Siemens Simatic Cp 1243-7 Lte Eu
- Siemens Simatic Cp 1243-7 Lte Eu Firmware
- Siemens Simatic Cp 1243-7 Lte Us — versions All versions < V3.3.46
Weakness classification (CWE)
References
- cert-portal.siemens.com/productcert/pdf/ssa-517377.pdf (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-34820?
- CVE-2022-34820 is a high-severity vulnerability in Siemens Simatic Cp 1242-7 V2, classified under Command Injection. CVSS score: 8.4/10. Published 2022-07-12.
- How severe is CVE-2022-34820?
- High severity. CVSS v3 base score is 8.4 out of 10.