Ubuntu update for php7.0

1) Use of insufficiently random values

EUVDB-ID: #VU72166

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0567

CWE-ID: CWE-330 - Use of Insufficiently Random Values

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to an error within the Password_verify() function, which always returns true with some hashes. A remote attacker can bypass authentication process and gain unauthorized access to the application.

Mitigation

Update the affected package php7.0 to the latest version.

Vulnerable software versions

Ubuntu: 16.04

php7.0 (Ubuntu package): before Ubuntu Pro

libapache2-mod-php7.0 (Ubuntu package): before Ubuntu Pro

php7.0-cli (Ubuntu package): before Ubuntu Pro

php7.0-fpm (Ubuntu package): before Ubuntu Pro

php7.0-cgi (Ubuntu package): before Ubuntu Pro

CPE2.3

• cpe:2.3:o:canonical:ubuntu:16.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6053-1

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.