CVE-2019-19783
First published: Mon Dec 16 2019(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/cyrus-imapd | 3.2.6-2+deb11u2 3.6.1-4+deb12u3 3.6.1-4+deb12u2 3.10.0-1 | |
| Cyrus SASL | >=2.5.0<2.5.15 | |
| Cyrus SASL | >=3.0.0<3.0.13 | |
| Cyrus SASL | >=3.1.0<3.1.8 | |
| Debian | =9.0 | |
| Debian | =10.0 | |
| Fedora | =30 | |
| Fedora | =31 | |
| Ubuntu | =18.04 |
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Reference Links
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2DIV4HQ6LG5GPRO4B5Z2NHCZUPBUVVVF/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6IGOO5UGEBBDPN7B2YXLK7I7L3Y35EBA/
- https://seclists.org/bugtraq/2019/Dec/38
- https://security.gentoo.org/glsa/202006-23
- https://usn.ubuntu.com/4566-1/
- https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.15.html
- https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html
- https://www.debian.org/security/2019/dsa-4590
- https://launchpad.net/bugs/cve/CVE-2019-19783
- https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html#security-fixes
- https://security-tracker.debian.org/tracker/CVE-2019-19783
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DIV4HQ6LG5GPRO4B5Z2NHCZUPBUVVVF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IGOO5UGEBBDPN7B2YXLK7I7L3Y35EBA/
- https://www.cve.org/CVERecord?id=CVE-2019-19783
- https://nvd.nist.gov/vuln/detail/CVE-2019-19783
- https://ubuntu.com/security/CVE-2019-19783
Frequently Asked Questions
What is the severity of CVE-2019-19783?
CVE-2019-19783 is classified as a medium severity vulnerability affecting Cyrus IMAP server.
How do I fix CVE-2019-19783?
To fix CVE-2019-19783, upgrade to a version of Cyrus IMAP that is at least 2.5.15, 3.0.13, or 3.1.8.
What versions of Cyrus IMAP are vulnerable to CVE-2019-19783?
CVE-2019-19783 affects Cyrus IMAP versions before 2.5.15, 3.0.x before 3.0.13, and 3.1.x through 3.1.8.
Who can exploit CVE-2019-19783?
A user with a mail account on the Cyrus IMAP service can exploit CVE-2019-19783 if sieve script uploading is allowed or certain non-default sieve options are enabled.
What impact does CVE-2019-19783 have?
CVE-2019-19783 allows a user to use a sieve script containing a fileinto directive, potentially leading to unauthorized access to emails.
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