A flaw was found in Moodle versions 3.1 to 3.1.15 and earlier unsupported versions. The mybackpack functionality allowed setting the URL of badges, when it should be restricted to the Mozilla Open Badges backpack URL. This resulted in the possibility of blind SSRF via requests made by the page.

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-8805-1 advisory.

    It was discovered that Moodle did not properly restrict URLs. An authenticated user could possibly use     this issue to perform a server-side request forgery attack and expose sensitive information.

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

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in Moodle versions 3.1 to 3.1.15 and earlier unsupported versions. The mybackpack     functionality allowed setting the URL of badges, when it should be restricted to the Mozilla Open Badges     backpack URL. This resulted in the possibility of blind SSRF via requests made by the page.
    (CVE-2019-3809)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A flaw was found in Moodle versions 3.1 to 3.1.15 and earlier unsupported versions. The mybackpack
    functionality allowed setting the URL of badges, when it should be restricted to the Mozilla Open Badges
    backpack URL. This resulted in the possibility of blind SSRF via requests made by the page.
    (CVE-2019-3809)

Multiple CVE fixes.

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	Type	Severity
365337	Ubuntu 18.04 LTS : Moodle vulnerability (USN-8805-1)	Nessus	Ubuntu Local Security Checks	Local	critical
260877	Linux Distros Unpatched Vulnerability : CVE-2019-3809	Nessus	Misc.	Local	critical
432542	SCA: security update for moodle/moodle (GHSA-jp4g-r8c9-3534)	Tenable Cloud Security	SCA Checks	Local	critical
432542	SCA: security update for moodle/moodle (GHSA-jp4g-r8c9-3534)	Tenable Self-Hosted Container Security	SCA Checks	Local	critical
432478	SCA: security update for moodle/moodle (GHSA-jp4g-r8c9-3534)	Tenable Cloud Security	SCA Checks	Local	critical
432478	SCA: security update for moodle/moodle (GHSA-jp4g-r8c9-3534)	Tenable Self-Hosted Container Security	SCA Checks	Local	critical
121492	Fedora 29 : moodle (2019-d8ec88b21e)	Nessus	Fedora Local Security Checks	Local	critical
121487	Fedora 28 : moodle (2019-077cd6f168)	Nessus	Fedora Local Security Checks	Local	critical

Detections

Analytics

CVE-2019-3809

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical

critical