CVE-2021-45083 Incorrect Default Permissions in Cobbler
Local attackers can read world-readable configuration files to obtain sensitive user password hashes and secrets.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-45083?
CVE-2021-45083 is a high-severity vulnerability in Fedoraproject Fedora, published on 20 Feb 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in Cobbler before 3.3.1. Files in /etc/cobbler are world readable. Two of those files contain some sensitive information that can be exposed to a local user who has non-privileged access to the server. The users.digest file contains the sha2-512 digest of users in a Cobbler local installation. In the case of an easy-to-guess password, it's trivial to obtain the plaintext string. The settings.yaml file contains secrets such as the hashed default password.
Weakness: CWE-276
Which versions are affected by CVE-2021-45083?
3 open source packages ship an affected version, including cobbler. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
cobbler PyPI | All versions | 3.3.1 |
cobbler PyPI | All versions | 3.3.1 |
cobbler PyPI | All versions | 3.3.1 |
Linux distribution packages (6)
cobbler SUSE:HPE Helion OpenStack 8 | All versions | 2.6.6-49.35.1 |
cobbler SUSE:Linux Enterprise Server 11 SP3-CLIENT-TOOLS | All versions | 2.2.2-0.68.15.1 |
cobbler SUSE:Linux Enterprise Server 11 SP4-CLIENT-TOOLS | All versions | 2.2.2-0.68.15.1 |
cobbler SUSE:Manager Client Tools 12 | All versions | 2.6.6-49.35.1 |
cobbler SUSE:OpenStack Cloud 8 | All versions | 2.6.6-49.35.1 |
cobbler SUSE:OpenStack Cloud 9 | All versions | 2.6.6-49.35.1 |
Products include Cobbler Project Cobbler, Fedoraproject Fedora.
How do I fix CVE-2021-45083?
Upgrade cobbler to 3.3.1 or later.
Is CVE-2021-45083 being exploited?
There is no known exploitation of CVE-2021-45083 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as GHSA-5946-mpw5-pqxx, PYSEC-2022-38, SUSE-FU-2022:0750-1, SUSE-SU-2022:0507-1, SUSE-SU-2022:14891-1, UBUNTU-CVE-2021-45083.