Authentication bypass in Go LDAP

Published: 2017-09-21 | Updated: 2022-11-21

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2017-14623
CWE-ID	CWE-287
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Go LDAP Universal components / Libraries / Programming Languages & Components
Vendor	Go

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper Authentication

EUVDB-ID: #VU69453

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-14623

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 processing authentication requests. A remote attacker can bypass authentication process and login with an empty password under certain conditions.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Go LDAP: 2.0 - 2.5.1

External links

http://github.com/go-ldap/ldap/commit/95ede1266b237bf8e9aa5dce0b3250e51bfefe66
http://github.com/go-ldap/ldap/pull/126

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.