Vulnerability Description
Incorrect Access Controls of Security Officer (SO) in PKCS11 R2 provider that ships with the Utimaco CryptoServer HSM product package allows an SO authenticated to a slot to retrieve attributes of keys marked as private keys in external key storage, and also delete keys marked as private keys in external key storage. This compromises the availability of all keys configured with external key storage and may result in an economic attack in which the attacker denies legitimate users access to keys while maintaining possession of an encrypted copy (blob) of the external key store for ransom. This attack has been dubbed reverse ransomware attack and may be executed via a physical connection to the CryptoServer or remote connection if SSH or remote access to LAN CryptoServer has been compromised. The Confidentiality and Integrity of the affected keys, however, remain untarnished.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Utimaco | Securityserver Cse Firmware | >= 4.00 |
| Utimaco | Securityserver Cse | - |
Related Weaknesses (CWE)
References
- https://support.hsm.utimaco.com/support/security-advisories/-/blogs/cve-2018-195Vendor Advisory
- https://www.linkedin.com/pulse/does-hsm-guarantee-cryptographic-key-security-kwaExploitTechnical DescriptionThird Party Advisory
- https://support.hsm.utimaco.com/support/security-advisories/-/blogs/cve-2018-195Vendor Advisory
- https://www.linkedin.com/pulse/does-hsm-guarantee-cryptographic-key-security-kwaExploitTechnical DescriptionThird Party Advisory
FAQ
What is CVE-2018-19589?
CVE-2018-19589 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Incorrect Access Controls of Security Officer (SO) in PKCS11 R2 provider that ships with the Utimaco CryptoServer HSM product package allows an SO authenticated to a slot to retrieve attributes of key...
How severe is CVE-2018-19589?
CVE-2018-19589 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-19589?
Check the references section above for vendor advisories and patch information. Affected products include: Utimaco Securityserver Cse Firmware, Utimaco Securityserver Cse.