Bug 1181159 (CVE-2020-35518) - VUL-0: CVE-2020-35518: 389-ds: information disclosure during the binding of a DN
Summary: VUL-0: CVE-2020-35518: 389-ds: information disclosure during the binding of a DN
Status: RESOLVED FIXED
Alias: CVE-2020-35518
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: William Brown
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/275783/
Whiteboard: CVSSv3.1:SUSE:CVE-2020-35518:5.3:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2021-01-20 10:01 UTC by Robert Frohl
Modified: 2022-05-05 11:01 UTC (History)
2 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description Robert Frohl 2021-01-20 10:01:34 UTC 
rh#1905565

When binding against a DN during authentication, the reply from 389-ds-base will be different whether the DN exists or not. This can be used by an unauthenticated attacker to check the existence of an entry in the LDAP database.

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1905565
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-35518
https://access.redhat.com/security/cve/CVE-2020-35518
Comment 1 Robert Frohl 2021-01-20 10:06:05 UTC 
@William: I could not identify patch so far, do you have an idea which one the right one would be ?
Comment 2 William Brown 2021-03-01 01:04:53 UTC 
(In reply to Robert Frohl from comment #1)
> @William: I could not identify patch so far, do you have an idea which one
> the right one would be ?

commit b6aae4d8e7c8a6ddd21646f94fef1bf7f22c3f32
https://github.com/389ds/389-ds-base/issues/4609

1.4.3.19 resolves for 15sp2 and 1.4.4.12 for 15sp3 (not released yet).


So I'll update these today.
Comment 4 Swamp Workflow Management 2021-03-08 20:24:11 UTC 
SUSE-SU-2021:0724-1: An update that fixes one vulnerability is now available.

Category: security (moderate)
Bug References: 1181159
CVE References: CVE-2020-35518
JIRA References: 
Sources used:
SUSE Linux Enterprise Module for Server Applications 15-SP2 (src):    389-ds-1.4.3.19~git0.bef0b5bed-3.12.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.
Comment 5 Swamp Workflow Management 2021-03-16 20:36:35 UTC 
openSUSE-SU-2021:0418-1: An update that fixes one vulnerability is now available.

Category: security (moderate)
Bug References: 1181159
CVE References: CVE-2020-35518
JIRA References: 
Sources used:
openSUSE Leap 15.2 (src):    389-ds-1.4.3.19~git0.bef0b5bed-lp152.2.12.1
Comment 9 Robert Frohl 2022-05-05 11:01:26 UTC 
not relevant enough to fix in:

- SUSE:SLE-15:Update/389-ds
- SUSE:SLE-15-SP1:Update/389-ds

closing.