#VU46532 Improper Verification of Cryptographic Signature in CodeMeter Runtime - CVE-2020-14515

Vulnerability identifier: #VU46532

Vulnerability risk: High

CVSSv4.0: 2.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-14515

CWE-ID: CWE-347

Exploitation vector: Network

Exploit availability: No

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

Vendor: Wibu Systems

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

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

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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.