#VU83437 Information Exposure Through Timing Discrepancy in RSA BSAFE Crypto-J - CVE-2019-3739

Vulnerability identifier: #VU83437

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-3739

CWE-ID: CWE-208

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RSA BSAFE Crypto-J
Server applications / Encryption software

Vendor: Dell

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to a timing discrepancy during ECDSA key generation. A remote attacker can recover the ECDSA keys and decrypt encrypted information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

RSA BSAFE Crypto-J: before 6.2.5

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External links
https://www.dell.com/support/security/en-us/details/DOC-106556/DSA-2019-094-RSA-BSAFE®-Crypto-J-Multiple-Security-Vulnerabilities

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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.