MitM attack in Apache::Session::LDAP perl module

Published: 2024-01-26

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2020-36658
CWE-ID	CWE-295
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Apache::Session::LDAP Universal components / Libraries / Programming Languages & Components
Vendor	LemonLDAP::NG

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Improper certificate validation

EUVDB-ID: #VU85841

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-36658

CWE-ID: CWE-295 - Improper Certificate Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to application does not check validity of the X.509 certificate when connecting to remote LDAP backends. A remote attacker can perform MitM attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache::Session::LDAP: 0.3 - 0.4

CPE2.3

External links

http://github.com/LemonLDAPNG/Apache-Session-LDAP/commit/490722b71eed1ed1ab33d58c78578f23e043561f
http://lists.debian.org/debian-lts-announce/2023/01/msg00024.html

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.