CVE-2019-12300 Improper Authentication in Buildbot
Attackers can log in as victims by submitting stolen OAuth tokens, leading to account takeover in Buildbot.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-12300?
CVE-2019-12300 is a critical authentication bypass vulnerability in n/a, published on 23 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2019-12300?
5 open source packages ship an affected version, including buildbot. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
buildbot PyPI | All versions | 1.8.2, 2.3.1 |
buildbot PyPI | All versions | 1.8.2 |
buildbot PyPI | All versions | 1.8.2 |
buildbot PyPI | From 2.0.0 | 2.3.1 |
buildbot PyPI | From 2.0.0 | 2.3.1 |
Products include Buildbot Buildbot.
How do I fix CVE-2019-12300?
Upgrade buildbot to a fixed version for your release line: 1.8.2 or 2.3.1.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-12300 being exploited?
There is no known exploitation of CVE-2019-12300 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-12300, GHSA-g86p-hgx5-2pfh, PYSEC-2019-6, UBUNTU-CVE-2019-12300.