CVE-2021-31892

HIGH

SINUMERIK Firmware - Improper Certificate Validation

Title source: llm
STIX 2.1

Description

A vulnerability has been identified in SINUMERIK Analyse MyCondition (All versions), SINUMERIK Analyze MyPerformance (All versions), SINUMERIK Analyze MyPerformance /OEE-Monitor (All versions), SINUMERIK Analyze MyPerformance /OEE-Tuning (All versions), SINUMERIK Integrate Client 02 (All versions >= V02.00.12 < 02.00.18), SINUMERIK Integrate Client 03 (All versions >= V03.00.12 < 03.00.18), SINUMERIK Integrate Client 04 (V04.00.02 and all versions >= V04.00.15 < 04.00.18), SINUMERIK Integrate for Production 4.1 (All versions < V4.1 SP10 HF3), SINUMERIK Integrate for Production 5.1 (V5.1), SINUMERIK Manage MyMachines (All versions), SINUMERIK Manage MyMachines /Remote (All versions), SINUMERIK Manage MyMachines /Spindel Monitor (All versions), SINUMERIK Manage MyPrograms (All versions), SINUMERIK Manage MyResources /Programs (All versions), SINUMERIK Manage MyResources /Tools (All versions), SINUMERIK Manage MyTools (All versions), SINUMERIK Operate V4.8 (All versions < V4.8 SP8), SINUMERIK Operate V4.93 (All versions < V4.93 HF7), SINUMERIK Operate V4.94 (All versions < V4.94 HF5), SINUMERIK Optimize MyProgramming /NX-Cam Editor (All versions). Due to an error in a third-party dependency the ssl flags used for setting up a TLS connection to a server are overwitten with wrong settings. This results in a missing validation of the server certificate and thus in a possible TLS MITM szenario.

References (2)

Core 2
Core References
Third Party Advisory x_refsource_misc
https://us-cert.cisa.gov/ics/advisories/icsa-21-194-04

Scores

CVSS v3 7.4
EPSS 0.0010
EPSS Percentile 27.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Details

CWE
CWE-295
Status published
Products (14)
siemens/sinumerik_analyse_mycondition_firmware
siemens/sinumerik_analyze_myperformance_firmware
siemens/sinumerik_integrate_client_firmware 2.00.12 - 2.00.18
siemens/sinumerik_integrate_for_production_firmware 5.1
siemens/sinumerik_integrate_for_production_firmware < 4.1
siemens/sinumerik_manage_mymachines_firmware
siemens/sinumerik_manage_myprograms_firmware
siemens/sinumerik_manage_myresources_firmware
siemens/sinumerik_manage_mytools_firmware
siemens/sinumerik_operate_firmware 4.8 (8 CPE variants)
... and 4 more
Published Jul 13, 2021
Tracked Since Feb 18, 2026