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Vulnerability · Published Apr 11, 2023 · Assigned by siemens

CVE-2022-43716

High 7.5

In plain English

A high-severity use-after-free 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 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.0%top 38.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (6GK7242-7KX31-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-1 (6GK7243-1BX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE EU (6GK7243-7KX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE US (6GK7243-7SX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0) (All versions < V3.4.29), 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), SIMATIC CP 443-1 (6GK7443-1EX30-0XE0) (All versions < V3.3), SIMATIC CP 443-1 (6GK7443-1EX30-0XE1) (All versions < V3.3), SIMATIC CP 443-1 Advanced (6GK7443-1GX30-0XE0) (All versions < V3.3), 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 NET CP 1242-7 V2 (6AG1242-7KX31-7XE0) (All versions < V3.4.29), SIPLUS NET CP 443-1 (6AG1443-1EX30-4XE0) (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (6AG1443-1GX30-4XE0) (All versions < V3.3), SIPLUS S7-1200 CP 1243-1 (6AG1243-1BX30-2AX0) (All versions < V3.4.29), SIPLUS S7-1200 CP 1243-1 RAIL (6AG2243-1BX30-1XE0) (All versions < V3.4.29), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.3.6), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.3.6). The webserver of the affected products contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation which leads to a restart of the webserver of the affected product.

Affected products (as reported)

VendorProductVersions
Siemens SIMATIC CP 1242-7 V2 0 – before V3.4.29
Siemens SIMATIC CP 1243-1 0 – before V3.4.29
Siemens SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) 0 – before V3.4.29
Siemens SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) 0 – before V3.4.29
Siemens SIMATIC CP 1243-7 LTE EU 0 – before V3.4.29
Siemens SIMATIC CP 1243-7 LTE US 0 – before V3.4.29
Siemens SIMATIC CP 1243-8 IRC 0 – before V3.4.29
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 SIMATIC CP 443-1 0 – before V3.3
Siemens SIMATIC CP 443-1 0 – before V3.3
Siemens SIMATIC CP 443-1 Advanced 0 – before V3.3
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 NET CP 1242-7 V2 0 – before V3.4.29
Siemens SIPLUS NET CP 443-1 0 – before V3.3
Siemens SIPLUS NET CP 443-1 Advanced 0 – before V3.3
Siemens SIPLUS S7-1200 CP 1243-1 0 – before V3.4.29
Siemens SIPLUS S7-1200 CP 1243-1 RAIL 0 – before V3.4.29
Siemens SIPLUS TIM 1531 IRC 0 – before V2.3.6
Siemens TIM 1531 IRC 0 – before V2.3.6

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

References