Information disclosure in IBM Watson Machine Learning Accelerator

1) Information Exposure Through Timing Discrepancy

EUVDB-ID: #VU55035

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-15522

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

Exploit availability: No

Description

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

The vulnerability exists due to a timing issue within the EC math library. A remote attacker who can observe timing information for the generation of multiple deterministic ECDSA signatures is able to reconstruct the private key used for encryption.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Watson Machine Learning Accelerator: 1.2.1 - 2.3.1

CPE2.3

• cpe:2.3:a:ibm_corporation:ibm_watson_machine_learning_accelerator:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_watson_machine_learning_accelerator:1.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:ibm_corporation:ibm_watson_machine_learning_accelerator:1.2.3:*:*:*:*:*:*:*

External links

https://www.ibm.com/blogs/psirt/security-bulletin-a-vulnerability-in-bouncy-castle-affect-ibm-watson-machine-learning-accelerator-2/
https://www.ibm.com/support/pages/node/6485147

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.