Vulnerability identifier: #VU27938

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11063

CWE-ID: CWE-204

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
TYPO3
Web applications / CMS

Vendor: TYPO3

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the time-based attacks can be used with the password reset functionality for backend users. A remote attacker can mount user enumeration based on email addresses assigned to backend user accounts.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

TYPO3: 10.4.0 - 10.4.1

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External links
http://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-347x-877p-hcwx
http://typo3.org/security/advisory/typo3-core-sa-2020-001

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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.