#VU59223 Improper Privilege Management in CodeMeter Runtime - CVE-2021-41057

Vulnerability identifier: #VU59223

Vulnerability risk: Low

CVSSv4.0: 4.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-41057

CWE-ID: CWE-269

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
CodeMeter Runtime
Server applications / DLP, anti-spam, sniffers

Vendor: Wibu Systems

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to the affected software improperly controls file access permissions by setting up a link to a special system file used with CmDongles. A local user can overwrite the essential files or a crash the CodeMeter Runtime Server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CodeMeter Runtime: before 7.30a

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External links
https://cert-portal.siemens.com/productcert/pdf/ssa-580693.pdf
https://cdn.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-210910-01.pdf
https://www.wibu.com/us/support/security-advisories.html

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.