Improper Verification of Cryptographic Signature in Wibu-Systems CodeMeter

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU46532

Risk: High

CVSSv3.1: 7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-14515

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the affected software does not verify the cryptographic signature for data within the license-file signature checking mechanism. A remote attacker can build arbitrary license files, including forging a valid license file as if it were a valid license file of an existing vendor.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CodeMeter Runtime: before 6.90

External links

http://ics-cert.us-cert.gov/advisories/icsa-20-203-01
http://www.wibu.com/fileadmin/wibu_downloads/security_advisories/Advisory_WIBU-200521-06.pdf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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