Privilege escalation in Cobbler

1) Privilege escalation

EUVDB-ID: #VU14482

Risk: Low

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10931

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain elevated privileges on the target system.

The vulnerability exists due to exposure of all functions from its CobblerXMLRPCInterface class over XMLRPC. A remote unauthenticated attacker can gain high privileges within cobbler, upload files to arbitrary location in the context of the daemon.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cobbler: 2.6.0 - 2.6.11

CPE2.3

• cpe:2.3:a:cobbler_project:cobbler:2.6.0:*:*:*:*:*:*:*
• cpe:2.3:a:cobbler_project:cobbler:2.6.1:*:*:*:*:*:*:*
• cpe:2.3:a:cobbler_project:cobbler:2.6.2:*:*:*:*:*:*:*

External links

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10931

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.