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cnvd-2022-20579

EUVD-2026-11295

fkie_cve-2022-0860

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

GHSA-mcg6-h362-cmq5 — Improper Authorization in cobbler

Affected: PyPI: cobbler

### Impact

If PAM is correctly configured and a user account is set to expired, the expired user-account is still able to successfully log into Cobbler in all places (Web UI, CLI & XMLRPC-API).

The same applies to user accounts with passwords set to be expired.

### Patches

There is a patch for the latest Cobbler `3.3.2` available, however a backport will be done for `3.2.x`.

### Workarounds

- Delete expired accounts which are able to access Cobbler via PAM. - Use `chage -l <username>` to lock the account. If the account has SSH-Keys attached then remove them completely.

### References

- Originally discovered by @ysf at https://www.huntr.dev/bounties/c458b868-63df-414e-af10-47e3745caa1d/

### How to test if my Cobbler instance is affected?

The following `pytest` test assumes that your PAM setup is correct. In case the added user is not able to login, this test does not make sense to be executed.

```python def test_pam_login_with_expired_user(): # Arrange # create pam testuser test_username = "expired_user" test_password = "password" test_api = CobblerAPI() subprocess_1 = subprocess.run( ["perl", "-e", "'print crypt(\"%s\", \"%s\")'" % (test_username, test_password)], stdout=subprocess.PIPE ) subprocess.run(["useradd", "-p", subprocess_1.stdout, test_username]) # change user to be expired subprocess.run(["chage", "-E0", test_username])

# Act result = pam.authenticate(test_api, test_username, test_passwo…

gsd-2022-0860

PYSEC-2022-177

Affected: PyPI: cobbler

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

SUSE-SU-2022:3750-1 — Security update for SUSE Manager Server 4.3

Security update for SUSE Manager Server 4.3

UBUNTU-CVE-2022-0860

Affected: Ubuntu:Pro:16.04:LTS: cobbler

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

WID-SEC-W-2022-1867 — cobbler: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in cobbler ausnutzen, um Sicherheitsvorkehrungen zu umgehen.