CVE-2021-31892

moderate-risk
Published 2021-07-13

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.

Do I need to act?

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0.10% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.4/10 High
NETWORK / HIGH complexity

Affected Products (20)

Sinumerik Analyse Mycondition Firmware
Sinumerik Analyze Myperformance Firmware
Sinumerik Integrate Client Firmware
Sinumerik Integrate For Production Firmware
Sinumerik Integrate For Production Firmware
Sinumerik Manage Mymachines Firmware
Sinumerik Manage Myprograms Firmware
Sinumerik Manage Myresources Firmware
Sinumerik Manage Mytools Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware
Sinumerik Operate Firmware

Affected Vendors

45
/ 100
moderate-risk
Severity 22/34 · High
Exploitability 0/34 · Minimal
Exposure 23/34 · High