Use of a broken or risky cryptographic algorithm in IBM App Connect Enterprise Certified Container

1) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU56685

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-2021-40528

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Exploit availability: No

Description

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

The vulnerability exists due to use of a broken or risky cryptographic algorithm in the ElGamal implementation. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

App Connect Enterprise Certified Container: before 5.0.1

CPE2.3

• cpe:2.3:a:ibm_corporation:app_connect_enterprise_certified_container:*:*:*:*:*:*:*:*

External links

https://www.ibm.com/blogs/psirt/security-bulletin-ibm-app-connect-enterprise-certified-container-may-be-vulnerable-to-security-restriction-bypass-due-to-cve-2021-40528/
https://www.ibm.com/support/pages/node/6837307

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.