Описание
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.
Меры по смягчению последствий
This flaw can be mitigated by:
- In cyrus-imapd >= 2.5 disable anysievefolder (it is disabled by default)
- In cyrus-imapd >=3.0 disable sieve_extensions
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | cyrus-imapd | Out of support scope | ||
| Red Hat Enterprise Linux 6 | cyrus-imapd | Out of support scope | ||
| Red Hat Enterprise Linux 7 | cyrus-imapd | Will not fix | ||
| Red Hat Enterprise Linux 8 | cyrus-imapd | Fixed | RHSA-2020:4655 | 04.11.2020 |
Показывать по
Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0. ...
An issue was discovered in Cyrus IMAP before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8. If sieve script uploading is allowed (3.x) or certain non-default sieve options are enabled (2.x), a user with a mail account on the service can use a sieve script containing a fileinto directive to create any mailbox with administrator privileges, because of folder mishandling in autosieve_createfolder() in imap/lmtp_sieve.c.
Уязвимость множества элементов сервера электронной почты Cyrus IMAP, связанная с недостатком механизма проверки вводимых данных, позволяющая нарушителю оказать воздействие на целостность информации
EPSS
6.5 Medium
CVSS3