CVE-2019-19783

cyrus-imapd: lmtpd component created mailboxes with administrator privileges if the "fileinto" was used, bypassing ACL checks

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Se detectó un problema en Cyrus IMAP versiones anteriores a 2.5.15, versiones 3.0.x antes de 3.0.13 y versiones 3.1.x hasta 3.1.8. Si la carga de script tamizado está permitida (versiones 3.x) o ciertas opciones de tamizado no predeterminadas están habilitadas (versiones 2.x), un usuario con una cuenta de correo en el servicio puede usar un script tamizado que contiene un archivo en la directiva para crear cualquier buzón con el administrador privilegios, debido a un manejo inapropiado de la carpeta en la función autosieve_createfolder() en el archivo imap/lmtp_sieve.c.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-13 CVE Reserved
2019-12-16 CVE Published
2024-04-10 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-269: Improper Privilege Management
CWE-287: Improper Authentication

CAPEC

References (10)

URL	Tag	Source
https://seclists.org/bugtraq/2019/Dec/38	Mailing List

URL	Date	SRC

URL	Date	SRC
https://www.cyrusimap.org/imap/download/release-notes/2.5/x/2.5.15.html	2023-11-07
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.html	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2DIV4HQ6LG5GPRO4B5Z2NHCZUPBUVVVF	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6IGOO5UGEBBDPN7B2YXLK7I7L3Y35EBA	2023-11-07
https://security.gentoo.org/glsa/202006-23	2023-11-07
https://usn.ubuntu.com/4566-1	2023-11-07
https://www.debian.org/security/2019/dsa-4590	2023-11-07
https://access.redhat.com/security/cve/CVE-2019-19783	2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1786756	2020-11-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cyrus Search vendor "Cyrus"		Imap Search vendor "Cyrus" for product "Imap"				>= 2.5.0 < 2.5.15 Search vendor "Cyrus" for product "Imap" and version " >= 2.5.0 < 2.5.15"		-		Affected
Cyrus Search vendor "Cyrus"		Imap Search vendor "Cyrus" for product "Imap"				>= 3.0.0 < 3.0.13 Search vendor "Cyrus" for product "Imap" and version " >= 3.0.0 < 3.0.13"		-		Affected
Cyrus Search vendor "Cyrus"		Imap Search vendor "Cyrus" for product "Imap"				>= 3.1.0 < 3.1.8 Search vendor "Cyrus" for product "Imap" and version " >= 3.1.0 < 3.1.8"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				30 Search vendor "Fedoraproject" for product "Fedora" and version "30"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				31 Search vendor "Fedoraproject" for product "Fedora" and version "31"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected