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Ubuntu 18.04 LTS : Cyrus IMAP Server vulnerabilities (USN-4566-1)

critical Nessus Plugin ID 141178

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4566-1 advisory.

 - The CalDAV feature in httpd in Cyrus IMAP 2.5.x through 2.5.12 and 3.0.x through 3.0.9 allows remote attackers to execute arbitrary code via a crafted HTTP PUT operation for an event with a long iCalendar property name. (CVE-2019-11356)

 - 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. (CVE-2019-19783)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4566-1

Plugin Details

Severity: Critical

ID: 141178

File Name: ubuntu_USN-4566-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/5/2020

Updated: 10/20/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-11356

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:cyrus-admin, p-cpe:/a:canonical:ubuntu_linux:cyrus-caldav, p-cpe:/a:canonical:ubuntu_linux:cyrus-clients, p-cpe:/a:canonical:ubuntu_linux:cyrus-common, p-cpe:/a:canonical:ubuntu_linux:cyrus-dev, p-cpe:/a:canonical:ubuntu_linux:cyrus-imapd, p-cpe:/a:canonical:ubuntu_linux:cyrus-murder, p-cpe:/a:canonical:ubuntu_linux:cyrus-nntpd, p-cpe:/a:canonical:ubuntu_linux:cyrus-pop3d, p-cpe:/a:canonical:ubuntu_linux:cyrus-replication, p-cpe:/a:canonical:ubuntu_linux:libcyrus-imap-perl

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 10/5/2020

Vulnerability Publication Date: 6/3/2019

Reference Information

CVE: CVE-2019-11356, CVE-2019-19783

USN: 4566-1