Bug 860850 (CVE-2012-4462)

Summary:	CVE-2012-4462 condor: DoS when removing jobs via jobcontrol.py when job id is in square brackets
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dahorak, esammons, iboverma, jneedle, matt, mcressma, mjc, pmackinn, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-03-06 22:24:37 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	840410, 862110
Bug Blocks:	860852

Description Vincent Danen 2012-09-26 21:05:45 UTC

Daniel Horák discovered that condor_schedd would crash when attempting to remove a job via /usr/share/condor/aviary/jobcontrol.py with CPROC in square brackets (e.g. "jobcontrol.py --cmd=removeJob --cproc=[1.0]").  If the aviary_query_server is configured to listen to public interfaces, this could allow a remote attacker to cause a denial of service condition in condor_schedd.  While condor_schedd will be restarted by the condor_master process after it exits, condor_master will throttle back restarts each crash.  This will slowly increment to the defined MASTER_BACKOFF_CEILING value (defaults to 3600s, or 1 hour).

In the recommended configuration scenario (deployed in a secure manner to prevent the aviary_query_server being exposed to unauthenticated users), this DoS can only be triggered by authenticated users, however they do not need the ADMINISTRATOR privilege to cause condor_schedd to halt.

Comment 1 Vincent Danen 2012-10-01 22:32:32 UTC

This was corrected upstream with git commit 8f9b304c:

http://condor-git.cs.wisc.edu/?p=condor.git;a=commit;h=8f9b304c4f6c0a98dafa61b2c0e4beb3b70e4c84

And was assigned the name CVE-2012-4462.

Comment 2 Vincent Danen 2012-10-01 22:33:31 UTC

Statement:

The Red Hat Security Response Team has rated this issue as having low security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 3 Vincent Danen 2012-10-01 22:34:25 UTC

Created condor tracking bugs for this issue

Affects: fedora-all [bug 862110]

Comment 4 Murray McAllister 2013-03-03 22:17:51 UTC

Acknowledgements:

This issue was discovered by Daniel Horak of the Red Hat Enterprise MRG Quality Engineering Team.

Comment 5 errata-xmlrpc 2013-03-06 18:46:55 UTC

This issue has been addressed in following products:

  MRG for RHEL-5 v. 2

Via RHSA-2013:0564 https://rhn.redhat.com/errata/RHSA-2013-0564.html

Comment 6 errata-xmlrpc 2013-03-06 18:50:05 UTC

This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2013:0565 https://rhn.redhat.com/errata/RHSA-2013-0565.html