Bug 1613861 (CVE-2018-10931) - CVE-2018-10931 cobbler: CobblerXMLRPCInterface exports all its methods over XMLRPC
Summary: CVE-2018-10931 cobbler: CobblerXMLRPCInterface exports all its methods over X...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-10931
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1613484 1613485 1613829 1614431 1614433 1614434
Blocks: 1612108
TreeView+ depends on / blocked
 
Reported: 2018-08-08 12:38 UTC by Cedric Buissart
Modified: 2021-02-16 23:48 UTC (History)
22 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
An API-exposure flaw was found in cobbler, where it exported CobblerXMLRPCInterface private functions over XMLRPC. A remote, unauthenticated attacker could use this flaw to gain important privileges within cobbler, as well as upload files to an arbitrary location in the daemon context.
Clone Of:
Environment:
Last Closed: 2018-08-14 08:24:18 UTC
Embargoed:

Attachments (Terms of Use)
fix (708 bytes, patch)
2018-08-08 20:39 UTC, Cedric Buissart 		no flags Details | Diff
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2372 0 None None None 2018-08-09 15:44:31 UTC

Description Cedric Buissart 2018-08-08 12:38:28 UTC 
Cobbler CobblerXMLRPCInterface object exposes all its functions over XMLRPC. This allows an attacker to use internal the internal functions of the class, such as creating a token, or upload files.

Upstream issue:

https://github.com/cobbler/cobbler/issues/1916

Upstream patch:

https://github.com/cobbler/cobbler/pull/1921

References:

https://movermeyer.com/2018-08-02-privilege-escalation-exploits-in-cobblers-api/
Comment 4 Cedric Buissart 2018-08-08 15:23:38 UTC 
Acknowledgments:

Name: Cedric Buissart (Red Hat)
Comment 6 Cedric Buissart 2018-08-08 20:39:31 UTC 
Created attachment 1474535 [details]
fix
Comment 12 Cedric Buissart 2018-08-09 14:52:40 UTC 
Created cobbler tracking bugs for this issue:

Affects: epel-all [bug 1614431]
Affects: fedora-all [bug 1614433]
Comment 15 errata-xmlrpc 2018-08-09 15:44:21 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 5.6
  Red Hat Satellite 5.7
  Red Hat Satellite 5.8

Via RHSA-2018:2372 https://access.redhat.com/errata/RHSA-2018:2372
Comment 19 Summer Long 2018-08-13 01:21:03 UTC 
Mitigation:

If SELinux is enabled, it might prevent some locations from accepting uploaded files from the attacker. This prevents some basic attacks allowing remote code execution, although it would not exclude all other possibilities.
Comment 23 Wade Mealing 2018-12-05 04:52:22 UTC 
Oddly, i never got this needinfo.. that was WIERD.
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