1. Ubuntu Security Notices
  2. USN-6475-1

USN-6475-1: Cobbler vulnerabilities

Publication date

13 November 2023

Overview

Several security issues were fixed in Cobbler.

Releases

Packages

  • cobbler - Cobbler is a versatile Linux deployment server

Details

It was discovered that Cobbler did not properly handle user input, which
could result in an absolute path traversal. An attacker could possibly
use this issue to read arbitrary files. (CVE-2014-3225)

It was discovered that Cobbler did not properly handle user input, which
could result in command injection. An attacker could possibly use this
issue to execute arbitrary code with high privileges.
(CVE-2017-1000469, CVE-2021-45082)

It was discovered that Cobbler did not properly hide private functions in
a class. A remote attacker could possibly use this issue to gain high
privileges and upload files to an arbitrary location.
(CVE-2018-10931, CVE-2018-1000225, CVE-2018-1000226)

Nicolas Chatelain...

It was discovered that Cobbler did not properly handle user input, which
could result in an absolute path traversal. An attacker could possibly
use this issue to read arbitrary files. (CVE-2014-3225)

It was discovered that Cobbler did not properly handle user input, which
could result in command injection. An attacker could possibly use this
issue to execute arbitrary code with high privileges.
(CVE-2017-1000469, CVE-2021-45082)

It was discovered that Cobbler did not properly hide private functions in
a class. A remote attacker could possibly use this issue to gain high
privileges and upload files to an arbitrary location.
(CVE-2018-10931, CVE-2018-1000225, CVE-2018-1000226)

Nicolas Chatelain discovered that Cobbler did not properly handle user
input, which could result in log poisoning. A remote attacker could
possibly use this issue to bypass authorization, write in an arbitrary
file, or execute arbitrary code.
(CVE-2021-40323, CVE-2021-40324, CVE-2021-40325)

It was discovered that Cobbler did not properly handle file permissions
during package install or update operations. An attacker could possibly
use this issue to perform a privilege escalation attack. (CVE-2021-45083)

It was discovered that Cobbler did not properly process credentials for
expired accounts. An attacker could possibly use this issue to login to
the platform with an expired account or password. (CVE-2022-0860)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
16.04 xenial cobbler –  2.4.1-0ubuntu2+esm1  
cobbler-common –  2.4.1-0ubuntu2+esm1  
cobbler-web –  2.4.1-0ubuntu2+esm1  
koan –  2.4.1-0ubuntu2+esm1  
python-cobbler –  2.4.1-0ubuntu2+esm1  
python-koan –  2.4.1-0ubuntu2+esm1  

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›