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.

The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3052 advisory.

  - 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)

  - 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 only on the application's self-reported version number.

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.

    - Add fix for CVE-2019-19783

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues 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.

    The cyrus-imapd packages contain a high-performance mail server with IMAP, POP3, NNTP, and SIEVE support.

    Security Fix(es):

    * 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)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Update to version 3.0.12 of cyrus-imapd, which includes (among other fixes) a fix for CVE-2019-18928.
https://www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.12.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.

ID	Name	Product	Family	Severity
162402	Debian DLA-3052-1 : cyrus-imapd - LTS security update	Nessus	Debian Local Security Checks	critical
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
131709	Fedora 30 : cyrus-imapd (2019-393e1cef4d)	Nessus	Fedora Local Security Checks	critical
131706	Fedora 31 : cyrus-imapd (2019-03be160f9c)	Nessus	Fedora Local Security Checks	critical

Detections

Analytics

CVE-2019-18928

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical