CVE-2022-34820

HIGH

SIMATIC and SIPLUS CP Firmware - Remote Code Execution via Authentication Field Injection

Title source: llm
STIX 2.1

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 does not correctly escape some user provided fields during the authentication process. This could allow an attacker to inject custom commands and execute arbitrary code with elevated privileges.

References (1)

Core 1

Scores

CVSS v3 8.4
EPSS 0.0058
EPSS Percentile 69.1%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-116 CWE-77
Status published
Products (15)
siemens/simatic_cp_1242-7_v2_firmware < 3.3.46
siemens/simatic_cp_1243-1_firmware < 3.3.46
siemens/simatic_cp_1243-7_lte_eu_firmware < 3.3.46
siemens/simatic_cp_1243-7_lte_us_firmware < 3.3.46
siemens/simatic_cp_1243-8_irc_firmware < 3.3.46
siemens/simatic_cp_1542sp-1_irc_firmware 2.0 - 2.2.28
siemens/simatic_cp_1543-1_firmware < 3.0.22
siemens/simatic_cp_1543sp-1_firmware 2.0 - 2.2.28
siemens/siplus_et_200sp_cp_1542sp-1_irc_tx_rail_firmware 2.0 - 2.2.28
siemens/siplus_et_200sp_cp_1543sp-1_isec_firmware 2.0 - 2.2.28
... and 5 more
Published Jul 12, 2022
Tracked Since Feb 18, 2026