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.

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched.

  - cyrus-imapd: lmtpd component created mailboxes with administrator privileges if the fileinto was used,     bypassing ACL checks (CVE-2019-19783)

Note that Nessus has not tested for this issue but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - cyrus-imapd: lmtpd component created mailboxes with administrator privileges if the fileinto was used,     bypassing ACL checks (CVE-2019-19783)

  - Cyrus IMAP before 3.2.7, and 3.3.x and 3.4.x before 3.4.1, allows remote authenticated users to bypass     intended access restrictions on server annotations and consequently cause replication to stall.
    (CVE-2021-32056)

  - Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service (multiple-minute daemon hang)     via input that is mishandled during hash-table interaction. Because there are many insertions into a     single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16. (CVE-2021-33582)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote NewStart CGSL host, running version MAIN 6.02, has cyrus-imapd packages installed that are affected by multiple vulnerabilities:

  - Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request     may be interpreted in the authentication context of an unrelated previous request that arrived over the     same connection. (CVE-2019-18928)

  - 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.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:4655 advisory.

  - cyrus-imapd: privilege escalation in HTTP request (CVE-2019-18928)

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

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-4655 advisory.

  - 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)

  - Cyrus IMAP 2.5.x before 2.5.14 and 3.x before 3.0.12 allows privilege escalation because an HTTP request     may be interpreted in the authentication context of an unrelated previous request that arrived over the     same connection. (CVE-2019-18928)

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

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4655 advisory.

  - cyrus-imapd: privilege escalation in HTTP request (CVE-2019-18928)

  - cyrus-imapd: lmtpd component created mailboxes with administrator privileges if the fileinto was used,     bypassing ACL checks (CVE-2019-19783)

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

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.

The remote host is affected by the vulnerability described in GLSA-202006-23 (Cyrus IMAP Server: Access restriction bypass)

    An issue was discovered in Cyrus IMAP Server where sieve script       uploading is excessively trusted.
  Impact :

    A user can use a sieve script to create any mailbox with administrator       privileges.
  Workaround :

    Disable sieve script uploading until the upgrade is complete.

Update to new upstream version 3.0.13, which includes a fix for CVE-2019-19783 and other minor fixes. Release notes:
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.13.htm l

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that the lmtpd component of the Cyrus IMAP server created mailboxes with administrator privileges if the 'fileinto' was used, bypassing ACL checks.

ID	Name	Product	Family	Severity
196877	RHEL 5 : cyrus-imapd (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	medium
196828	RHEL 6 : cyrus-imapd (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	medium
147242	NewStart CGSL MAIN 6.02 : cyrus-imapd Multiple Vulnerabilities (NS-SA-2021-0086)	Nessus	NewStart CGSL Local Security Checks	critical
145926	CentOS 8 : cyrus-imapd (CESA-2020:4655)	Nessus	CentOS Local Security Checks	critical
142756	Oracle Linux 8 : cyrus-imapd (ELSA-2020-4655)	Nessus	Oracle Linux Local Security Checks	critical
142383	RHEL 8 : cyrus-imapd (RHSA-2020:4655)	Nessus	Red Hat Local Security Checks	critical
141178	Ubuntu 18.04 LTS : Cyrus IMAP Server vulnerabilities (USN-4566-1)	Nessus	Ubuntu Local Security Checks	critical
137460	GLSA-202006-23 : Cyrus IMAP Server: Access restriction bypass	Nessus	Gentoo Local Security Checks	medium
132656	Fedora 31 : cyrus-imapd (2019-ad23a4522d)	Nessus	Fedora Local Security Checks	medium
132650	Fedora 30 : cyrus-imapd (2019-7938c21723)	Nessus	Fedora Local Security Checks	medium
132326	Debian DSA-4590-1 : cyrus-imapd - security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2019-19783

medium

Tenable Plugins

medium

medium

critical

critical

critical

critical

critical

medium

medium

medium

medium