Vulnerability identifier: #VU70446

Vulnerability risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-32531

CWE-ID: CWE-300

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Bookkeeper
Server applications / Database software

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform a MitM attack.

The vulnerability exists due to Apache Bookkeeper Java Client does not close the connection to the bookkeeper server when TLS hostname verification fails. A remote attacker can perform a man-in-the-middle (MitM) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Bookkeeper: 4.15.0, 4.14.0 - 4.14.5, 4.12.0 - 4.12.1, 4.11.0 - 4.11.1, 4.9.0 - 4.9.2, 4.8.0 - 4.8.2, 4.7.0 - 4.7.3, 4.6.0 - 4.6.2, 4.5.0 - 4.5.1, 4.4.0, 4.3.0 - 4.3.2, 4.2.0 - 4.2.4, 4.1.0, 4.0.0, 4.13.0, 4.10.0

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External links
http://lists.apache.org/thread/xyk2lfc7lzof8mksmwyympbqxts1b5s9

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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.