There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote
    unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field
    of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog
    operation. (CVE-2019-11454)

  - A buffer over-read in Util_urlDecode in util.c in Tildeslash Monit before 5.25.3 allows a remote
    authenticated attacker to retrieve the contents of adjacent memory via manipulation of GET or POST
    parameters. The attacker can also cause a denial of service (application outage). (CVE-2019-11455)

The remote Debian 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-2855 advisory.

    Two vulnerabilities were fixed in monit, a utility for monitoring and managing Unix systems.
    CVE-2019-11454 Persistent cross-site scripting in http/cervlet.c CVE-2019-11455 Buffer over-read in     Util_urlDecode in util.c For Debian 9 stretch, these problems have been fixed in version     1:5.20.0-6+deb9u2. We recommend that you upgrade your monit packages. For the detailed security status of     monit please refer to its security tracker page at: https://security-tracker.debian.org/tracker/monit     Further information about Debian LTS security advisories, how to apply these updates to your system and     frequently asked questions can be found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian 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 5.26.0 (includes security fix for CVE-2019-11454 and CVE-2019-11455)

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.

Zack Flack discovered that Monit incorrectly handled certain input. A remote authenticated user could exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2019-11454)

Zack Flack discovered a buffer overread when Monit decoded certain crafted URLs. An attacker could exploit this to leak potentially sensitive information. (CVE-2019-11455).

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

Zack Flack found several issues in monit, a utility for monitoring and managing daemons or similar programs.

CVE-2019-11454 An XSS vulnerabilitty has been reported that could be prevented by HTML escaping the log file content when viewed via Monit GUI.

CVE-2019-11455 A buffer overrun vulnerability has been reported in URL decoding.

For Debian 8 'Jessie', these problems have been fixed in version 1:5.9-1+deb8u2.

We recommend that you upgrade your monit packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 16.04 ESM / 18.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4860-1 advisory.

    Zack Flack discovered that Monit incorrectly handled certain input. A remote authenticated user could     exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2019-11454)

    Zack Flack discovered a buffer overread when Monit decoded certain crafted URLs. An attacker could exploit     this to potentially leak sensitive information. (CVE-2019-11455)

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

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

ID	Name	Product	Family	Published	Updated	Severity
405594	Alpine: monit: security update to 5.24.0-r2	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
405595	Alpine: monit: security update to 5.25.2-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
405596	Alpine: monit: security update to 5.25.2-r1	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
405594	Alpine: monit: security update to 5.24.0-r2	Tenable Cloud Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
405596	Alpine: monit: security update to 5.25.2-r1	Tenable Cloud Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
405595	Alpine: monit: security update to 5.25.2-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	10/31/2023	7/2/2026	high
156320	Debian DLA-2855-1 : monit - LTS security update	Nessus	Debian Local Security Checks	12/27/2021	1/24/2025	high
134461	Fedora 31 : monit (2020-9c19202d55)	Nessus	Fedora Local Security Checks	3/13/2020	3/22/2024	high
124718	Ubuntu 18.10 / 19.04 : Monit vulnerabilities (USN-3971-1)	Nessus	Ubuntu Local Security Checks	5/9/2019	5/24/2024	high
124340	Debian DLA-1767-1 : monit security update	Nessus	Debian Local Security Checks	4/29/2019	5/31/2024	high
183601	Ubuntu 16.04 ESM / 18.04 ESM : Monit vulnerabilities (USN-4860-1)	Nessus	Ubuntu Local Security Checks	10/20/2023	8/27/2024	high

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