#VU98523 Improper Certificate Validation in Apache Sling Commons Messaging Mail - CVE-2021-44549

Vulnerability identifier: #VU98523

Vulnerability risk: Medium

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

CVE-ID: CVE-2021-44549

CWE-ID: CWE-295

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Sling Commons Messaging Mail
Server applications / Other server solutions

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper certificate validation when sending emails via SMTPS. A remote attacker can perform MitM attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Sling Commons Messaging Mail: 1.0.0

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External links
https://lists.apache.org/thread/l8p9h2bqvkj6rhv4w8kzctb817415b7f

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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.