CVE-2021-31337

The Telnet service of the SIMATIC HMI Comfort Panels system component in affected products does not require authentication, which may allow a remote attacker to gain access to the device if the service is enabled. Telnet is disabled by default on the SINAMICS Medium Voltage Products (SINAMICS SL150: All versions, SINAMICS SM150: All versions, SINAMICS SM150i: All versions).

CVSS v3 9.8 CRITICAL
CVSS v2.0 6.8 MEDIUM

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-131-04	Not Applicable Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

AND

cpe:2.3:h:siemens:sinamics_sl150:-:*:*:*:*:*:*:*

cpe:2.3:o:siemens:sinamics_sl150_firmware:*:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:h:siemens:sinamics_sm150:-:*:*:*:*:*:*:*

cpe:2.3:o:siemens:sinamics_sm150_firmware:*:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:h:siemens:sinamics_sm150i:-:*:*:*:*:*:*:*

cpe:2.3:o:siemens:sinamics_sm150i_firmware:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-06-28 13:15

Updated : 2021-07-02 14:05

NVD link : CVE-2021-31337

Mitre link : CVE-2021-31337

CVE.ORG link : CVE-2021-31337

JSON object : View

Products Affected

siemens

sinamics_sm150i_firmware
sinamics_sm150_firmware
sinamics_sm150i
sinamics_sl150_firmware
sinamics_sl150
sinamics_sm150

CWE

CWE-306

Missing Authentication for Critical Function

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