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Bug 1602190 - (CVE-2018-10905) CVE-2018-10905 cfme: Improper access control in dRuby allows local users to execute arbitrary commands as root
CVE-2018-10905 cfme: Improper access control in dRuby allows local users to e...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20180720:1954...
: Security
Depends On: 1603578 1608552
Blocks: 1602174
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Reported: 2018-07-17 21:29 EDT by Sam Fowler
Modified: 2018-09-26 14:36 EDT (History)
20 users (show)

See Also:
Fixed In Version: cfme 5.8.5.0, cfme 5.9.4.2
Doc Type: If docs needed, set a value
Doc Text:
CloudForms Management Engine has a vulnerability that allows local users to execute arbitrary commands as root. An attacker with SSH access to the system can use the dRuby (DRb) module installed on the system to execute arbitrary shell commands using `instance_eval()`.
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Clone Of:
Environment:
Last Closed: 2018-09-25 20:25:03 EDT
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2561 None None None 2018-09-04 14:00 EDT
Red Hat Product Errata RHSA-2018:2745 None None None 2018-09-26 14:36 EDT

  None (edit)
Description Sam Fowler 2018-07-17 21:29:35 EDT 
CloudForms Management Engine has a vulnerability that allows local users to execute arbitrary commands as root. An attacker with SSH access to the system can use the dRuby (DRb) module installed on the system to execute arbitrary shell commands using `instance_eval()`.
Comment 6 Richard Maciel Costa 2018-07-19 22:34:55 EDT 
Mitigation:

Administrators of the CloudForms appliance can filter local packages going to the port where MIQ Server is listening, by using the following iptables command:
# iptables -I OUTPUT 1 -o lo -d localhost/32 -p tcp -m tcp --dport <MIQ Server port> -m owner '!' --uid-owner root -j DROP

Where the MIQ Server port can be found using netstat command:
# netstat -nl --tcp -p | grep -i "miq server"
Comment 11 Richard Maciel Costa 2018-07-23 17:02:32 EDT 
Acknowledgments:

Name: Stephen Gappinger (American Express)
Comment 12 errata-xmlrpc 2018-09-04 14:00:24 EDT 
This issue has been addressed in the following products:

  CloudForms Management Engine 5.9

Via RHSA-2018:2561 https://access.redhat.com/errata/RHSA-2018:2561
Comment 13 errata-xmlrpc 2018-09-26 14:36:29 EDT 
This issue has been addressed in the following products:

  CloudForms Management Engine 5.8

Via RHSA-2018:2745 https://access.redhat.com/errata/RHSA-2018:2745
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