CVE-2022-43767

moderate-risk
Published 2023-04-11

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 of the webserver of the affected product.

Do I need to act?

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0.21% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (20)

Simatic Cp 1242-7 V2 Firmware
Simatic Cp 1243-1 Firmware
Simatic Cp 1243-1 Dnp3 Firmware
Simatic Cp 1243-1 Iec Firmware
Simatic Cp 1243-7 Lte Eu Firmware
Simatic Cp 1243-7 Lte Us Firmware
Simatic Cp 1243-8 Irc Firmware
Simatic Cp 1542Sp-1 Firmware
Simatic Cp 1542Sp-1 Irc Firmware
Simatic Cp 1543Sp-1 Firmware
Simatic Cp 443-1 Firmware
Simatic Cp 443-1 Advanced Firmware
Simatic Ipc Diagbase Firmware
Simatic Ipc Diagmonitor Firmware
Siplus Et 200Sp Cp 1542Sp-1 Irc Tx Rail Firmware
Siplus Et 200Sp Cp 1543Sp-1 Isec Firmware
Siplus Et 200Sp Cp 1543Sp-1 Isec Tx Rail Firmware
Siplus Net Cp 1242-7 V2 Firmware
Siplus Net Cp 443-1 Firmware
Siplus Net Cp 443-1 Advanced Firmware

Affected Vendors

48
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 1/34 · Minimal
Exposure 21/34 · High