Improper Authentication in 389-ds-base - CVE-2021-3652

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Main Vulnerability Database Vulnerabilities #VU55334

Improper Authentication in 389-ds-base - CVE-2021-3652

Published: July 27, 2021


Vulnerability identifier: #VU55334
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3652
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
389-ds-base
Software vendor:
389 Directory Server Project

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the way the asterisk character is processed by the LDAP server when importing password hashes from /etc/shadow for disabled accounts. As a result of the flaw, if an LDAP admin imports such an account from a NIS or /etc/shadow database into Directory Server, any password will be valid for that account.


Remediation

Install updates from vendor's website.

External links