A flaw was found in openstack-mistral. By manipulating the SSH private key filename, the std.ssh action can be used to disclose the presence of arbitrary files within the filesystem of the executor running the action. Since std.ssh private_key_filename can take an absolute path, it can be used to assess whether or not a file exists on the executor's filesystem.

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

  - A flaw was found in openstack-mistral. By manipulating the SSH private key filename, the std.ssh action
    can be used to disclose the presence of arbitrary files within the filesystem of the executor running the
    action. Since std.ssh private_key_filename can take an absolute path, it can be used to assess whether or
    not a file exists on the executor's filesystem. (CVE-2018-16849)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7465-1 advisory.

    It was discovered that Mistral incorrectly handled nested anchors in YAML files. An attacker could     possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS.
    (CVE-2018-16848)

    Pierre Gaxatte discovered that Mistral incorrectly handled erroneous SSH private key filename commands. An     attacker could possibly use this issue to expose sensitive information. (CVE-2018-16849)

    It was discovered that Mistral incorrectly handled the permissions of sensitive log files. An attacker     could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 18.04 LTS.
    (CVE-2019-3866)

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	Severity
432342	SCA: security update for mistral (GHSA-fqw7-c6vr-q29m)	Tenable Cloud Security	SCA Checks	high
432342	SCA: security update for mistral (GHSA-fqw7-c6vr-q29m)	Tenable Self-Hosted Container Security	SCA Checks	high
234908	Ubuntu 16.04 LTS / 18.04 LTS : Mistral vulnerabilities (USN-7465-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2018-16849

high

Tenable Plugins

high

high

high