Anolis OS update for 389-ds:1.4 (Anolis OS 8.2) module

1) Improper Authentication

EUVDB-ID: #VU55334

Risk: Medium

CVSSv4.0: 1.7 [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 - Improper Authentication

Exploit availability: No

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.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-lib389: before 1.4.2.4-17

389-ds-base-snmp: before 1.4.2.4-17

389-ds-base-libs: before 1.4.2.4-17

389-ds-base-legacy-tools: before 1.4.2.4-17

389-ds-base-devel: before 1.4.2.4-17

389-ds-base: before 1.4.2.4-17

CPE2.3

• cpe:2.3:o:openanolis:anolis_os:8:*:*:*:*:*:*:*
• cpe:2.3:a:openanolis:python3-lib389:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:389-ds-base-snmp:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:389-ds-base-libs:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:389-ds-base-legacy-tools:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:389-ds-base-devel:*:*:*:*:*:anolis_os:*:*
• cpe:2.3:a:openanolis:389-ds-base:*:*:*:*:*:anolis_os:*:*

External links

https://anas.openanolis.cn/errata/detail/ANSA-2021:0157

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.