Cobbler allows anyone to connect to cobbler XML-RPC server with a known password and make changes

Cobbler, a Linux installation server that allows for rapid setup of network installation environments, has an improper authentication vulnerability starting in version 3.0.0 and prior to versions 3.2.3 and 3.3.7. `utils.get_shared_secret()` always returns `-1`, which allows anyone to connect to cobbler XML-RPC as user `''` password `-1` and make any changes. This gives anyone with network access to a cobbler server full control of the server. Versions 3.2.3 and 3.3.7 fix the issue.

cobbler: Privilege escalation by processing of crafted management parameters

The set_mgmt_parameters function in item.py in cobbler before 2.2.2 allows context-dependent attackers to execute arbitrary code via vectors related to the use of the yaml.load function instead of the yaml.safe_load function, as demonstrated using Puppet.

Improper Authorization in cobbler/cobbler

Improper Authorization in GitHub repository cobbler/cobbler prior to 3.3.2.

cobbler: unsafe permissions on sensitive files in /etc/cobbler

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.

cobbler: incomplete template sanitization

An issue was discovered in Cobbler before 3.3.1. In the templar.py file, the function check_for_invalid_imports can allow Cheetah code to import Python modules via the "#from MODULE import" substring. (Only lines beginning with #import are blocked.)

cobbler: unsafe protocol usage

An issue was discovered in Cobbler through 3.3.1. Routines in several files use the HTTP protocol instead of the more secure HTTPS.

cobbler: Authorization bypass allows modifying settings

Cobbler before 3.3.0 allows authorization bypass for modification of settings.

cobbler: Arbitrary file write via upload_log_data XMLRPC function

Cobbler before 3.3.0 allows arbitrary file write operations via upload_log_data.

cobbler: Arbitrary File Disclosure/Template Injection via generate_script RPC method

Cobbler before 3.3.0 allows log poisoning, and resultant Remote Code Execution, via an XMLRPC method that logs to the logfile for template injection.

cobbler: CobblerXMLRPCInterface exports all its methods over XMLRPC

It was found that cobbler 2.6.x exposed all functions from its CobblerXMLRPCInterface class over XMLRPC. A remote, unauthenticated attacker could use this flaw to gain high privileges within cobbler, upload files to arbitrary location in the context of the daemon.

cobbler: Command injection in the "add repo" component allows for remote code execution

Cobbler version up to 2.8.2 is vulnerable to a command injection vulnerability in the "add repo" component resulting in arbitrary code execution as root user.

A flaw was found in cobbler software component version 2.6.11-1. It suffers from an invalid parameter validation vulnerability, leading the arbitrary file reading. The flaw is triggered by navigating to a vulnerable URL via cobbler-web on a default installation.