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CVE-2021-20094

A denial of service vulnerability exists in Wibu-Systems CodeMeter versions < 7.21a. An unauthenticated remote attacker can exploit this issue to crash the CodeMeter Runtime Server.

Published: Jun 16, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-125
NVD MITRE
7.5CVSSHIGH
EPSS Score
4.7%
Top 9.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

WIBU Systems published information about two vulnerabilities and an associated fix release version of CodeMeter Runtime, a product provided by WIBU Systems and used in several Siemens products for license management. The vulnerabilities are described in the section "Vulnerability Classification" below and got assigned the CVE IDs CVE-2021-20093 and CVE-2021-20094. Successful exploitation of these vulnerabilities could allow an attacker to read data from the heap of the CodeMeter Runtime network server, or crash the CodeMeter Runtime Server (i.e., CodeMeter.exe). 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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-125

Affected Products

CodeMeter RuntimeWIBU-SYSTEMS AG
On-prem
Security Products / pki-crypto
PSS(R)CAPESiemens AG
On-prem
Enterprise Software / collaboration-groupware
SICAM 230Siemens AG
On-prem
Enterprise Software / collaboration-groupware
Wibu-Systems CodeMetern/a
codemeterwibu
On-prem
Security Products / vuln-mgmt-scanner
wibu-systems agcommercialDESecurity Productsaka codemeter runtime, wibukey, wibukey network server management
siemens agcommercialDEEnterprise Softwareaka siemens
wibucommercialSecurity Productsaka codemeter, wibukey
and 2 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210423-02.pdf&#13;
cdn.wibu.com
https://www.cisa.gov/uscert/ics/advisories/icsa-21-210-02&#13;
cisa.gov
https://cert-portal.siemens.com/productcert/pdf/ssa-675303.pdf&#13;
cert-portal.siemens.com
and 20 more references View all →

Timeline

Published
Jun 16, 2021
Last Updated
Nov 21, 2024

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