Information exposure through timing discrepancy in RSA BSAFE Crypto-C Micro Edition and Micro Edition Suite

1) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU21462

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-3732

CWE-ID: CWE-208 - Information Exposure Through Timing Discrepancy

Exploit availability: No

Description

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

 The vulnerability exists due to two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product. A remote attacker can extract information leaving data at risk of exposure.

This vulnerability affects the following versions:

• RSA BSAFE Crypto-C Micro Edition - versions prior to 4.0.5.3 (in 4.0.x) and prior to 4.1.3.3 (in 4.1.x)
• RSA BSAFE Micro Edition Suite - versions prior to 4.0.11 (in 4.0.x), prior to 4.1.6.1 (in 4.1.x) and versions prior to 4.3.3 (4.2.x and 4.3.x)
  

Mitigation

Install updates from vendor's website.

Vulnerable software versions

RSA BSAFE Micro Edition Suite: before 4.3.3

RSA BSAFE Crypto-C: before 4.1.3.3

External links

http://www.dell.com/support/security/en-us/details/DOC-107000/DSA-2019-079-RSA-BSAFE®-Crypto-C-Micro-Edition-and-Micro-Edition-Suite-Multiple-Security-Vulnerab

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.