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CVE-2021-42029

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 <...

Published: Apr 12, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-284
7.8HIGH
NVD MITRE
EPSS Score
0.2%
Top 86.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

An attacker could achieve privilege escalation on the web server of certain devices configured by SIMATIC STEP 7 (TIA Portal) due to incorrect handling of the webserver's user management configuration during downloading. This only affects the S7-1200 and S7-1500 CPUs' (incl. related ET200 CPUs and SIPLUS variants) web server, when activated. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where updates are not, or not yet available.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-284NVD-CWE-Other

Affected Products

Siemens AG
commercial·DEaka siemens
SIMATIC STEP 7 (TIA Portal)
ICS / OT / IoT
simatic step 7
ICS / OT / IoT
SIMATIC STEP 7 (TIA Portal) V15
ICS / OT / IoT
SIMATIC STEP 7 (TIA Portal) V16
ICS / OT / IoT
SIMATIC STEP 7 (TIA Portal) V17
ICS / OT / IoT

Exploitability

Official Patch Available
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References

https://cert-portal.siemens.com/productcert/pdf/ssa-350757.pdf&#13;
cert-portal.siemens.com
https://nvd.nist.gov/vuln/detail/CVE-2021-42029&#13;
nvd.nist.gov
https://vuldb.com/?id.196963
vuldb.com
and 14 more references View all →

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