Vulnerability · Published Jul 12, 2022 · Assigned by siemens
CVE-2022-34819
Critical 10.0
In plain English
A critical-severity heap buffer overflow in SIMATIC CP 1242-7 V2 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities).
Official 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 lacks proper validation of user-supplied data when parsing specific messages. This could result in a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of device.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC CP 1242-7 V2 | All versions < V3.3.46 |
| Siemens | SIMATIC CP 1243-1 | All versions < V3.3.46 |
| Siemens | SIMATIC CP 1243-7 LTE EU | All versions < V3.3.46 |
| Siemens | SIMATIC CP 1243-7 LTE US | All versions < V3.3.46 |
| Siemens | SIMATIC CP 1243-8 IRC | All versions < V3.3.46 |
| Siemens | SIMATIC CP 1542SP-1 IRC | All versions >= V2.0 < V2.2.28 |
| Siemens | SIMATIC CP 1543-1 | All versions < V3.0.22 |
| Siemens | SIMATIC CP 1543SP-1 | All versions >= V2.0 < V2.2.28 |
| Siemens | SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL | All versions >= V2.0 < V2.2.28 |
| Siemens | SIPLUS ET 200SP CP 1543SP-1 ISEC | All versions >= V2.0 < V2.2.28 |
| Siemens | SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL | All versions >= V2.0 < V2.2.28 |
| Siemens | SIPLUS NET CP 1242-7 V2 | All versions < V3.3.46 |
| Siemens | SIPLUS NET CP 1543-1 | All versions < V3.0.22 |
| Siemens | SIPLUS S7-1200 CP 1243-1 | All versions < V3.3.46 |
| Siemens | SIPLUS S7-1200 CP 1243-1 RAIL | All versions < V3.3.46 |
Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C