CVE-2017-7540

Impact:
Important
Public Date:
2017-07-11
CWE:
CWE-184
Bugzilla:
1473243: CVE-2017-7540 rubygem-safemode: Bypassing the whitelist of safe commands via block_pass

The MITRE CVE dictionary describes this issue as:

rubygem-safemode, as used in Foreman, versions 1.3.2 and earlier are vulnerable to bypassing safe mode limitations via special Ruby syntax. This can lead to deletion of objects for which the user does not have delete permissions or possibly to privilege escalation.

Find out more about CVE-2017-7540 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Affected Packages State

Platform Package State
Red Hat Satellite 6 ruby193-rubygem-safemode Affected
Red Hat Ceph Storage 1.3 ruby193-rubygem-safemode Will not fix
OpenStack 6 Installer for RHEL 7 ruby193-rubygem-safemode Will not fix

Acknowledgements

This issue was discovered by Tomer Brisker (Red Hat).

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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