#VU56660 Information disclosure in IBM WebSphere Application Server - CVE-2021-29842

Vulnerability identifier: #VU56660

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-29842

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
IBM WebSphere Application Server
Server applications / Application servers

Vendor: IBM Corporation

Description

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

The vulnerability exists due to excessive data output, when the WebSphere Application Server is configured with a federated repository. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

IBM WebSphere Application Server: 7.0 - 7.0.0.45, 8.0 - 8.0.0.15, 8.5 - 8.5.5.20, 9.0 - 9.0.5.9

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External links
https://www.ibm.com/blogs/psirt/security-bulletin-websphere-application-server-is-vulnerable-to-information-disclosure-cve-2021-29842/
https://www.ibm.com/support/pages/node/6489485
https://www.ibm.com/support/pages/node/6488623

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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.