Vulnerability Description
aiosmtpd is a reimplementation of the Python stdlib smtpd.py based on asyncio. aiosmtpd is vulnerable to inbound SMTP smuggling. SMTP smuggling is a novel vulnerability based on not so novel interpretation differences of the SMTP protocol. By exploiting SMTP smuggling, an attacker may send smuggle/spoof e-mails with fake sender addresses, allowing advanced phishing attacks. This issue is also existed in other SMTP software like Postfix. With the right SMTP server constellation, an attacker can send spoofed e-mails to inbound/receiving aiosmtpd instances. This issue has been addressed in version 1.4.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Aio-Libs | Aiosmtpd | < 1.4.5 |
Related Weaknesses (CWE)
References
- https://github.com/aio-libs/aiosmtpd/commit/24b6c79c8921cf1800e27ca144f4f3702398Patch
- https://github.com/aio-libs/aiosmtpd/security/advisories/GHSA-pr2m-px7j-xg65Vendor Advisory
- https://www.postfix.org/smtp-smuggling.htmlProduct
- https://github.com/aio-libs/aiosmtpd/commit/24b6c79c8921cf1800e27ca144f4f3702398Patch
- https://github.com/aio-libs/aiosmtpd/security/advisories/GHSA-pr2m-px7j-xg65Vendor Advisory
- https://www.postfix.org/smtp-smuggling.htmlProduct
FAQ
What is CVE-2024-27305?
CVE-2024-27305 is a vulnerability with a CVSS score of 5.3 (MEDIUM). aiosmtpd is a reimplementation of the Python stdlib smtpd.py based on asyncio. aiosmtpd is vulnerable to inbound SMTP smuggling. SMTP smuggling is a novel vulnerability based on not so novel interpret...
How severe is CVE-2024-27305?
CVE-2024-27305 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-27305?
Check the references section above for vendor advisories and patch information. Affected products include: Aio-Libs Aiosmtpd.