Vulnerability identifier: #VU17238

Vulnerability risk: Medium

CVSSv3.1: 7.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TYPO3
Web applications / CMS

Vendor: TYPO3

Description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to database records containing insecure or empty credentials might be persisted when using the TYPO3 backend in order to create new backend user accounts. A remote attacker can retrieve additional information about installed system and third party extensions.

Successful exploitation of the vulnerability may result in some of the following:

• account contains empty login credentials (username and/or password)
• account is incomplete and contains weak credentials (username and/or password).

Mitigation
The vulnerability has been addressed in the versions 8.7.23 and 9.5.4.

Vulnerable software versions

TYPO3: 8.0.0 - 8.7.22, 9.5.0 - 9.5.3, 9.0.0 - 9.4.0

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External links
http://typo3.org/security/advisory/typo3-core-sa-2019-002/

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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.