CVE-2018-1000226 Cobbler Improper Validation of Security Tokens

Critical 9.8 Published Updated

Attackers can exploit improper security token validation in the XMLRPC API to escalate privileges, manipulate data, or harvest credentials.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2018-1000226?

CVE-2018-1000226 is a critical missing authorization vulnerability in n/a, published on 20 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Cobbler version Verified as present in Cobbler versions 2.6.11+, but code inspection suggests at least 2.0.0+ or possibly even older versions may be vulnerable contains a Incorrect Access Control vulnerability in XMLRPC API (/cobbler_api) that can result in Privilege escalation, data manipulation or exfiltration, LDAP credential harvesting. This attack appear to be exploitable via "network connectivity". Taking advantage of improper validation of security tokens in API endpoints. Please note this is a different issue than CVE-2018-10931.

Weakness: CWE-732

Which versions are affected by CVE-2018-1000226?

3 open source packages ship an affected version, including cobbler. It affects 1 product.

PackageAffectedFixed in
cobbler PyPIAll versions3.0.0
cobbler PyPIAll versions3.0.0
cobbler PyPIAll versions3.0.0

Products include Cobblerd Cobbler.

How do I fix CVE-2018-1000226?

Upgrade cobbler to 3.0.0 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-1000226 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-1000226 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-f88q-22g8-frcg, PYSEC-2026-315, UBUNTU-CVE-2018-1000226.

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