CVE-2019-19783

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.45%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory cyrusimap.org Vendor Advisory cyrusimap.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.15.html release notes patch vendor advisory
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html release notes patch vendor advisory
https://seclists.org/bugtraq/2019/Dec/38 third party advisory mailing list
https://www.debian.org/security/2019/dsa-4590 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DIV4HQ6LG5GPRO4B5Z2NHCZUPBUVVVF/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IGOO5UGEBBDPN7B2YXLK7I7L3Y35EBA/ vendor advisory
https://security.gentoo.org/glsa/202006-23 third party advisory vendor advisory
https://usn.ubuntu.com/4566-1/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-19783?
CVE-2019-19783 has been scored as a medium severity vulnerability.
How to fix CVE-2019-19783?
To fix CVE-2019-19783, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-19783 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2019-19783 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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