Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.

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

  - Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and     uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a     victim, they can login as the victim. (CVE-2019-12300)

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:

  - Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and
    uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a
    victim, they can login as the victim. (CVE-2019-12300)

Update to 1.8.2 to fix CVE-2019-12300.

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.

Update to 2.3.1 to fix CVE-2019-12300.

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.

Buildbot accepted user-submitted authorization token from OAuth and used it to authenticate user.

The vulnerability can lead to malicious attackers to authenticate as legitimate users of a Buildbot instance without knowledge of the victim's login credentials on certain scenarios.

If an attacker has an application authorized to access data of another user at the same Identity Provider as the used by the Buildbot instance, then he can acquire a token to access the data of that user, supply the token to the Buildbot instance and successfully login as the victim.

ID	Name	Product	Family	Severity
255005	Linux Distros Unpatched Vulnerability : CVE-2019-12300	Nessus	Misc.	critical
423277	SCA: security update for buildbot (GHSA-g86p-hgx5-2pfh)	Tenable Cloud Security	SCA Checks	critical
423277	SCA: security update for buildbot (GHSA-g86p-hgx5-2pfh)	Tenable Self-Hosted Container Security	SCA Checks	critical
125785	Fedora 29 : buildbot (2019-2ea119f414)	Nessus	Fedora Local Security Checks	critical
125745	Fedora 30 : buildbot (2019-3270dc130b)	Nessus	Fedora Local Security Checks	critical
125663	FreeBSD : buildbot -- OAuth Authentication Vulnerability (ada8db8a-8471-11e9-8170-0050562a4d7b)	Nessus	FreeBSD Local Security Checks	critical

Detections

Analytics

CVE-2019-12300

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical