aiosmptd is a reimplementation of the Python stdlib smtpd.py based on asyncio. Prior to version 1.4.6, servers based on aiosmtpd accept extra unencrypted commands after STARTTLS, treating them as if they came from inside the encrypted connection. This could be exploited by a man-in-the-middle attack. Version 1.4.6 contains a patch for the issue.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - aiosmptd is a reimplementation of the Python stdlib smtpd.py based on asyncio. Prior to version 1.4.6,     servers based on aiosmtpd accept extra unencrypted commands after STARTTLS, treating them as if they came     from inside the encrypted connection. This could be exploited by a man-in-the-middle attack. Version 1.4.6     contains a patch for the issue. (CVE-2024-34083)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - aiosmptd is a reimplementation of the Python stdlib smtpd.py based on asyncio. Prior to version 1.4.6,
    servers based on aiosmtpd accept extra unencrypted commands after STARTTLS, treating them as if they came
    from inside the encrypted connection. This could be exploited by a man-in-the-middle attack. Version 1.4.6
    contains a patch for the issue. (CVE-2024-34083)

The remote openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2024:0243-1 advisory.

    - CVE-2024-34083: Fixed MiTM attack could inject extra unencrypted commands after STARTTLS (boo#1224467)
    - CVE-2024-27305: Fixed SMTP smuggling (boo#1221328)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
253235	Linux Distros Unpatched Vulnerability : CVE-2024-34083	Nessus	Misc.	Local	medium
419918	SCA: security update for aiosmtpd (GHSA-wgjv-9j3q-jhg8)	Tenable Cloud Security	SCA Checks	Local	medium
419918	SCA: security update for aiosmtpd (GHSA-wgjv-9j3q-jhg8)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
205751	openSUSE 15 Security Update : python-aiosmtpd (openSUSE-SU-2024:0243-1)	Nessus	SuSE Local Security Checks	Local	medium

Detections

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CVE-2024-34083

medium

Tenable Plugins

medium

medium

medium

medium