Vulnerability · Published Jun 11, 2024 · Assigned by siemens
CVE-2023-50763
Medium 4.9
In plain English
A medium-severity infinite loop in SIMATIC CP 1542SP-1 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Official description
A vulnerability has been identified in SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.3), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.3), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.3), 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 affected products, if configured to allow the import of PKCS12 containers, could end up in an infinite loop when processing incomplete certificate chains. This could allow an authenticated remote attacker to create a denial of service condition by importing specially crafted PKCS12 containers.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC CP 1542SP-1 | 0 – before V2.3 |
| Siemens | SIMATIC CP 1542SP-1 IRC | 0 – before V2.3 |
| Siemens | SIMATIC CP 1543SP-1 | 0 – before V2.3 |
| Siemens | SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL | 0 – before V2.3 |
| Siemens | SIPLUS ET 200SP CP 1543SP-1 ISEC | 0 – before V2.3 |
| Siemens | SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL | 0 – before V2.3 |
| Siemens | SIPLUS TIM 1531 IRC | 0 – before V2.4.8 |
| Siemens | TIM 1531 IRC | 0 – before V2.4.8 |
Weakness: CWE-835 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C