High severity · published Nov 14, 2021
CVE-2021-41057
In WIBU CodeMeter Runtime before 7.30a, creating a crafted CmDongles symbolic link will overwrite the linked file without checking permissions
7.1
CVSS
0.3%
EPSS
No
On KEV
Description
In WIBU CodeMeter Runtime before 7.30a, creating a crafted CmDongles symbolic link will overwrite the linked file without checking permissions.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CR
Codemeter Runtime · Wibu
before 7.30a · source: NVD
PC
Pss Cape · Siemens
14 · source: NVD
PE
Pss E · Siemens
34.0.0 before 34.9.1; 35.0.0 before 35.3.2 · source: NVD
PO
Pss Odms · Siemens
before 12.2.6.1 · source: NVD
S2
Sicam 230 · Siemens
before 8.0 · source: NVD
SI
Simatic Information Server · Siemens
before 2019; 2019; 2019 · source: NVD
SP
Simatic Pcs Neo · Siemens
All versions, or not specified · source: NVD
SP
Simatic Process Historian · Siemens
through 2019 · source: NVD
SW
Simatic Wincc OA · Siemens
through 3.18 · source: NVD
SI
Simit · Siemens
through 10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41057
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41057
Mitigation
https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210910-01.pdf
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-580693.pdf
Vendor Advisory
https://www.wibu.com/us/support/security-advisories.html
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7.5
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A denial of service vulnerability exists in Wibu-Systems CodeMeter versions < 7.21a