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).

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.

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

  - 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)

Note that Nessus has not tested for this issue 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.

ID	Name	Product	Family	Severity
183601	Ubuntu 16.04 ESM / 18.04 ESM : Monit vulnerabilities (USN-4860-1)	Nessus	Ubuntu Local Security Checks	high
156320	Debian DLA-2855-1 : monit - LTS security update	Nessus	Debian Local Security Checks	high
134461	Fedora 31 : monit (2020-9c19202d55)	Nessus	Fedora Local Security Checks	high
124718	Ubuntu 18.10 / 19.04 : Monit vulnerabilities (USN-3971-1)	Nessus	Ubuntu Local Security Checks	high
124340	Debian DLA-1767-1 : monit security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2019-11455

high

Tenable Plugins

high

high

high

high

high