Описание
Mongoose is an embedded web server and network library. Prior to version 7.22, an on-path network attacker with a wildcard certificate for a parent domain can impersonate deeper subdomains to a client using the built-in TLS stack. The mg_tls_verify_cert_san() and mg_tls_verify_cert_cn() functions in src/tls_builtin.c call mg_match(), whose wildcard can cross DNS label boundaries, so a pattern such as *.example.com can match foo.bar.example.com. The resulting hostname verification bypass permits interception and modification of TLS traffic. This issue is fixed in version 7.22.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| mongoose | fixed | 7.22+ds-1 | package |
Примечания
https://github.com/cesanta/mongoose/security/advisories/GHSA-jp6g-796f-39vp
https://github.com/cesanta/mongoose/pull/3611
Fixed by: https://github.com/cesanta/mongoose/commit/a9df523f76f43a38bd53b4232b9cfd4c16869e71 (7.22)
Связанные уязвимости
(Mongoose is an embedded web server and network library. Prior to versi ...)
Mongoose is an embedded web server and network library. Prior to version 7.22, an on-path network attacker with a wildcard certificate for a parent domain can impersonate deeper subdomains to a client using the built-in TLS stack. The mg_tls_verify_cert_san() and mg_tls_verify_cert_cn() functions in src/tls_builtin.c call mg_match(), whose wildcard can cross DNS label boundaries, so a pattern such as *.example.com can match foo.bar.example.com. The resulting hostname verification bypass permits interception and modification of TLS traffic. This issue is fixed in version 7.22.
Уязвимость функций mg_tls_verify_cert_san() и mg_tls_verify_cert_cn() файла src/tls_builtin.c библиотеки Mongoose, позволяющая нарушителю проводить атаки типа "человек посередине"