Bug 1610645 (CVE-2018-10919) - CVE-2018-10919 samba: Confidential attribute disclosure via substring search
Summary: CVE-2018-10919 samba: Confidential attribute disclosure via substring search
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-10919
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1612808 1617911 1617914 1618620 1618621
Blocks: 1610646
TreeView+ depends on / blocked
 
Reported: 2018-08-01 05:34 UTC by Sam Fowler
Modified: 2022-03-13 15:19 UTC (History)
29 users (show)

Fixed In Version: samba 4.6.16, samba 4.7.9, samba 4.8.4
Clone Of:
Environment:
Last Closed: 2019-07-12 13:05:52 UTC
Embargoed:

Attachments (Terms of Use)

Description Sam Fowler 2018-08-01 05:34:54 UTC 
When using custom LDAP attributes, Samba seems to recognize the searchFlags confidential flag on custom attributes and hides them from all non-admin users. However, the values of the attributes can still be guessed efficiently by brute forcing them one character after another in a wildcard search query.
Comment 2 Sam Fowler 2018-08-16 03:41:43 UTC 
External Reference:

https://www.samba.org/samba/security/CVE-2018-10919.html
Comment 3 Sam Fowler 2018-08-16 07:13:27 UTC 
Created samba tracking bugs for this issue:

Affects: fedora-all [bug 1617911]
Comment 5 Huzaifa S. Sidhpurwala 2018-08-17 05:49:06 UTC 
Acknowledgments:

Name: Phillip Kuhrt (the Samba project)
Comment 8 Product Security DevOps Team 2019-07-12 13:05:52 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-10919
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