Vulnerability identifier: #VU21413

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-2019-16394

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SPIP
Web applications / CMS

Vendor: spip.net

Description

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

The vulnerability exists due to SPIP returns different responses for existing and non-existing email addresses in an error messages from the password-reminder page. A remote attacker can brute-force the password reminder functionality and exfiltrate email addresses of existing web application users.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SPIP: 3.1.0 - 3.1.10, 3.2.0 - 3.2.4

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External links
http://blog.spip.net/Mise-a-jour-CRITIQUE-de-securite-Sortie-de-SPIP-3-2-5-et-SPIP-3-1-11.html
http://core.spip.net/issues/4171
http://seclists.org/bugtraq/2019/Sep/40
http://www.debian.org/security/2019/dsa-4532
http://zone.spip.net/trac/spip-zone/changeset/117577/spip-zone
http://zone.spip.net/trac/spip-zone/changeset/117578/spip-zone

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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.