Title: nCipher PKCS#11 Implementation Access Control Vulnerability
Severity: MODERATE
Description:
PKCS#11 (Cryptographic Token Interface Standard) is an API specification for devices which perform cryptographic operations. A vulnerability has been reported in the nCipher implementation of this standard.
Under certain circumstances, it is possible for plaintext keys to be exported from affected devices and components. This is due to a flaw in the access control component of the nCipher PKCS#11 library.
According to nCipher, if keys are "improperly secured" an attacker who is able to issue commands to any module in and obtain data from a Security World may also obtain plaintext key data from the target module. It is not currently known how keys must be "improperly secured" for this attack scenario to be possible.
A compromise of the system may result if keys are disclosed.
Affected Products:
- nCipher MSCAPI CSP 5.50.0
- nCipher MSCAPI CSP 5.54.0
- nCipher SafeBuilder 0.0.0
- nCipher nForce 0.0.0
- nCipher nShield 0.0.0
- nCipher payShield 0.0.0
References:
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