Vulnerability identifier: #VU52712

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13953

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Tapestry
Web applications / Modules and components for CMS

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can use a specially crafted URL to download files inside the WEB-INF folder of the WAR being run

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Tapestry: 5.4 - 5.5.0

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External links
http://lists.apache.org/thread.html/r50eb12e8a12074a9b7ed63cbab91d180d19cc23dc1da3ed5b6e1280f%40%3Cusers.tapestry.apache.org%3E
http://lists.apache.org/thread.html/r37dab61fc7f7088d4311e7f995ef4117d58d86a675f0256caa6991eb@%3Cusers.tapestry.apache.org%3E

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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.