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CVE-2020-35518

Published: 26 March 2021

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.

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
389-ds-base
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal
Released (1.4.3.6-2ubuntu0.1~esm1)
Available with Ubuntu Pro
groovy Ignored
(end of life)
hirsute Not vulnerable
(1.4.4.11-1)
impish Not vulnerable
(1.4.4.11-2build1)
jammy Not vulnerable
(2.0.2)
kinetic Not vulnerable
(2.0.2)
lunar Not vulnerable
(2.0.2)
mantic Not vulnerable
(2.0.2)
trusty Does not exist
(trusty was not-affected [code not present])
upstream
Released (1.4.2.17, 1.4.3.18, 1.4.4.10, 2.0.2)
xenial Not vulnerable
(code not present)
Patches:
upstream: https://github.com/389ds/389-ds-base/commit/cc0f69283abc082488824702dae485b8eae938bc
upstream: https://github.com/389ds/389-ds-base/commit/38b97faef8a6421a7a638ecdbf0b341e2b3f9ab3
upstream: https://github.com/389ds/389-ds-base/commit/c8e77b811b2f07a71c9cd0058a83e77e47edcd72
upstream: https://github.com/389ds/389-ds-base/commit/16d9020a8ae1bd5ed1fd7ca1ad8041c889a88c1f

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N