Vulnerability Monitor

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CVE-2022-34820

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.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.4, indicating it requires adjacent network access with relatively low complexity without requiring user interaction . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 30 products from siemens, from siemens, from siemens and 27 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2022-07-12T10:15:12.343

Last Modified

2024-11-21T07:10:15.080

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.4 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Secondary
CWE-77
Type: Primary
CWE-116

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	siemens	simatic_cp_1242-7_v2_firmware	< 3.3.46	Yes
Hardware	siemens	simatic_cp_1242-7_v2	-	No
Operating System	siemens	simatic_cp_1243-1_firmware	< 3.3.46	Yes
Hardware	siemens	simatic_cp_1243-1	-	No
Operating System	siemens	simatic_cp_1243-7_lte_eu_firmware	< 3.3.46	Yes
Hardware	siemens	simatic_cp_1243-7_lte_eu	-	No
Operating System	siemens	simatic_cp_1243-7_lte_us_firmware	< 3.3.46	Yes
Hardware	siemens	simatic_cp_1243-7_lte_us	-	No
Operating System	siemens	simatic_cp_1243-8_irc_firmware	< 3.3.46	Yes
Hardware	siemens	simatic_cp_1243-8_irc	-	No
Operating System	siemens	simatic_cp_1542sp-1_irc_firmware	< 2.2.28	Yes
Hardware	siemens	simatic_cp_1542sp-1_irc	-	No
Operating System	siemens	simatic_cp_1543-1_firmware	< 3.0.22	Yes
Hardware	siemens	simatic_cp_1543-1	-	No
Operating System	siemens	simatic_cp_1543sp-1_firmware	< 2.2.28	Yes
Hardware	siemens	simatic_cp_1543sp-1	-	No
Operating System	siemens	siplus_et_200sp_cp_1542sp-1_irc_tx_rail_firmware	< 2.2.28	Yes
Hardware	siemens	siplus_et_200sp_cp_1542sp-1_irc_tx_rail	-	No
Operating System	siemens	siplus_et_200sp_cp_1543sp-1_isec_firmware	< 2.2.28	Yes
Hardware	siemens	siplus_et_200sp_cp_1543sp-1_isec	-	No
Operating System	siemens	siplus_et_200sp_cp_1543sp-1_isec_tx_rail_firmware	< 2.2.28	Yes
Hardware	siemens	siplus_et_200sp_cp_1543sp-1_isec_tx_rail	-	No
Operating System	siemens	siplus_net_cp_1242-7_v2_firmware	< 3.3.46	Yes
Hardware	siemens	siplus_net_cp_1242-7_v2	-	No
Operating System	siemens	siplus_net_cp_1543-1_firmware	< 3.0.22	Yes
Hardware	siemens	siplus_net_cp_1543-1	-	No
Operating System	siemens	siplus_s7-1200_cp_1243-1_firmware	< 3.3.46	Yes
Hardware	siemens	siplus_s7-1200_cp_1243-1	-	No
Operating System	siemens	siplus_s7-1200_cp_1243-1_rail_firmware	< 3.3.46	Yes
Hardware	siemens	siplus_s7-1200_cp_1243-1_rail	-	No

References

https://cert-portal.siemens.com/productcert/pdf/ssa-517377.pdf Patch, Vendor Advisory ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-517377.pdf Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For siemens's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.