Ubuntu update for libapache-session-ldap-perl

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

Update the affected package libapache-session-ldap-perl to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 20.04

libapache-session-ldap-perl (Ubuntu package): before Ubuntu Pro

CPE2.3

• cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:libapache-session-ldap-perl_ubuntu_package:*:*:*:*:*:ubuntu:*:

External links

http://ubuntu.com/security/notices/USN-6596-1

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.