Bug 860850 - (CVE-2012-4462) CVE-2012-4462 condor: DoS when removing jobs via jobcontrol.py when job id is in square brackets
CVE-2012-4462 condor: DoS when removing jobs via jobcontrol.py when job id is...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20120928,reported=2...
: Security
Depends On: 840410 862110
Blocks: 860852
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Reported: 2012-09-26 17:05 EDT by Vincent Danen
Modified: 2013-03-12 08:23 EDT (History)
9 users (show)

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Doc Type: Bug Fix
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Last Closed: 2013-03-06 17:24:37 EST
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RHEL 7.3 requirements from Atomic Host:


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Description Vincent Danen 2012-09-26 17:05:45 EDT
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 18:32:32 EDT
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 18:33:31 EDT
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 18:34:25 EDT
Created condor tracking bugs for this issue

Affects: fedora-all [bug 862110]
Comment 4 Murray McAllister 2013-03-03 17:17:51 EST
Acknowledgements:

This issue was discovered by Daniel Horak of the Red Hat Enterprise MRG Quality Engineering Team.
Comment 5 errata-xmlrpc 2013-03-06 13:46:55 EST
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 13:50:05 EST
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

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