Описание
Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| exim4 | fixed | 4.97-3 | package |
Примечания
https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/
https://www.openwall.com/lists/oss-security/2023/12/21/6
https://bugs.exim.org/show_bug.cgi?id=3063
https://exim.org/static/doc/security/CVE-2023-51766.txt
https://git.exim.org/exim.git/commit/cf1376206284f2a4f11e32d931d4aade34c206c5 (exim-4.98-RC0)
https://git.exim.org/exim.git/commit/4596719398f6f2365bed563aafd757a6433ce7b4 (exim-4.98-RC0)
https://git.exim.org/exim.git/commit/5bb786d5ad568a88d50d15452aacc8404047e5ca (exim-4.98-RC0)
Связанные уязвимости
Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not.
Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not.
Exim through 4.97 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages that appear to originate from the Exim server, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not.
Уязвимость реализации протокола SMTP почтового сервера Exim, позволяющая нарушителю обойти политику безопасности SPF (Sender Policy Framework) и отправить скрытый HTTP-запрос (атака типа HTTP Request Smuggling)