Home/CVE/When binding against a DN during authentication, the reply from 389-ds-base will be different whether the DN exists or n
CVE

CVE-2020-35518

When binding against a DN during authentication, the reply from 389-ds-base will be different whether the DN exists or n

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.

MEDIUM · CVSS 5.3 EPSS 0.00801
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-203Observable Discrepancy
▤

Affected Products & Versions

5
redhat 389 directory server< 1.4.3.19
redhat 389 directory server>= 1.4.4.0 and < 1.4.4.13
redhat 389 directory server>= 2.0.0 and < 2.0.3
redhat directory serverall versions
redhat enterprise linuxall versions
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Mar 2021 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
⚑

Vendor Advisories

8
usnUSN-5231-1
suse-csafopenSUSE-SU-2021:0418-1
suse-csafSUSE-SU-2021:0724-1
rhsaRHSA-2021:0599Moderate
rhsaRHSA-2021:1243Moderate
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=1905565Issue TrackingPatchVendor Advisory
https://github.com/389ds/389-ds-base/commit/b6aae4d8e7c8a6ddd21646f94fef1bf7f22c3f32PatchThird Party Advisory
https://github.com/389ds/389-ds-base/commit/cc0f69283abc082488824702dae485b8eae938bcPatchThird Party Advisory
https://github.com/389ds/389-ds-base/issues/4480PatchThird Party Advisory
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