Vulnerability identifier: #VU22518

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-16907

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
In-App & Desktop Notifications
Web applications / Modules and components for CMS

Vendor: Infosysta

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the "plugins/servlet/nfj/UserFilter?searchQuery=@" URI. A remote attacker can bypass authentication process and obtain a list of all valid Jira usernames.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

In-App & Desktop Notifications: 1.6.13_J8

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External links
http://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2019-043.txt

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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. However, proof of concept for this vulnerability is available.