CVE-2022-43716

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductSiemens Simatic Cp 1242-7 V2 Firmware
PublishedApr 11, 2023
First seenApr 11, 2023

How to fix

Update
  • siemens simatic_cp_443-1_firmware3.3 or later
  • siemens simatic_cp_443-1_advanced_firmware3.3 or later
  • siemens siplus_net_cp_443-1_firmware3.3 or later
  • siemens siplus_net_cp_443-1_advanced_firmware3.3 or later
  • siemens siplus_tim_1531_irc_firmware2.3.6 or later
  • siemens tim_1531_irc_firmware2.3.6 or later

Affected products

ProductAffected versionsFixed in
siemens simatic_cp_1242-7_v2_firmwareNo range specified—
siemens simatic_cp_1243-1_firmwareNo range specified—
siemens simatic_cp_1243-1_dnp3_firmwareNo range specified—
siemens simatic_cp_1243-1_iec_firmwareNo range specified—
siemens simatic_cp_1243-7_lte_eu_firmwareNo range specified—
siemens simatic_cp_1243-7_lte_us_firmwareNo range specified—
siemens simatic_cp_1243-8_irc_firmwareNo range specified—
siemens simatic_cp_1542sp-1_firmwareNo range specified—
siemens simatic_cp_1542sp-1_irc_firmwareNo range specified—
siemens simatic_cp_1543sp-1_firmwareNo range specified—
siemens simatic_cp_443-1_firmwarev < 3.33.3
siemens simatic_cp_443-1_advanced_firmwarev < 3.33.3
siemens simatic_ipc_diagbase_firmwareNo range specified—
siemens simatic_ipc_diagmonitor_firmwareNo range specified—
siemens siplus_et_200sp_cp_1542sp-1_irc_tx_rail_firmwareNo range specified—
siemens siplus_et_200sp_cp_1543sp-1_isec_firmwareNo range specified—
siemens siplus_et_200sp_cp_1543sp-1_isec_tx_rail_firmwareNo range specified—
siemens siplus_net_cp_1242-7_v2_firmwareNo range specified—
siemens siplus_net_cp_443-1_firmwarev < 3.33.3
siemens siplus_net_cp_443-1_advanced_firmwarev < 3.33.3
siemens siplus_s7-1200_cp_1243-1_firmwareNo range specified—
siemens siplus_s7-1200_cp_1243-1_rail_firmwareNo range specified—
siemens siplus_tim_1531_irc_firmwarev < 2.3.62.3.6
siemens tim_1531_irc_firmwarev < 2.3.62.3.6

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