CVE-2021-42029

7.8HIGH

Key Information:

Vendor
Siemens
Status
Simatic Step 7 (tia Portal) V15
Simatic Step 7 (tia Portal) V16
Simatic Step 7 (tia Portal) V17
Vendor
CVE Published:
12 April 2022

Summary

A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) V15 (All versions), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 5), SIMATIC STEP 7 (TIA Portal) V17 (All versions < V17 Update 2). An attacker could achieve privilege escalation on the web server of certain devices due to improper access control vulnerability in the engineering system software. The attacker needs to have direct access to the impacted web server.

Affected Version(s)

SIMATIC STEP 7 (TIA Portal) V15 All versions

SIMATIC STEP 7 (TIA Portal) V16 All versions < V16 Update 5

SIMATIC STEP 7 (TIA Portal) V17 All versions < V17 Update 2

References

https://cert-portal.siemens.com/productcert/pdf/ssa-35075...
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.