CVE-2019-19783
Last modified
CVE-2019-19783 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 1.65% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cyrus | Imap | >= 2.5.0, < 2.5.15 |
| Cyrus | Imap | >= 3.0.0, < 3.0.13 |
| Cyrus | Imap | >= 3.1.0, < 3.1.8 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 30 |
| Fedoraproject | Fedora | 31 |
| Canonical | Ubuntu Linux | 18.04 |
References
- https://seclists.org/bugtraq/2019/Dec/38Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202006-23Third Party Advisory
- https://usn.ubuntu.com/4566-1/Third Party Advisory
- https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.15.htmlPatch, Release Notes, Vendor Advisory
- https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.htmlPatch, Release Notes, Vendor Advisory
- https://www.debian.org/security/2019/dsa-4590Third Party Advisory
- https://seclists.org/bugtraq/2019/Dec/38Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202006-23Third Party Advisory
- https://usn.ubuntu.com/4566-1/Third Party Advisory
- https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.15.htmlPatch, Release Notes, Vendor Advisory
- https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.htmlPatch, Release Notes, Vendor Advisory
- https://www.debian.org/security/2019/dsa-4590Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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