Authentication bypass in IBM Tivoli Application Dependency Discovery Manager

1) Improper Authentication

EUVDB-ID: #VU55417

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30640

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the JNDI Realm when processing authentication requests. A remote attacker can authenticate using variations of a valid user name and bypass some of the protection provided by the LockOut Realm.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM Tivoli Application Dependency Discovery Manager: 7.3.0.0

External links

http://www.ibm.com/blogs/psirt/security-bulletin-open-source-apache-tomcat-vulnerabilities-affect-ibm-tivoli-application-dependency-discovery-manager-cve-2021-30640/
http://www.ibm.com/support/pages/node/6483317

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.