Vulnerability identifier: #VU67622
Vulnerability risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-22
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Rack
Web applications /
Modules and components for CMS
Vendor: Rack
Description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in Rack::Directory app. A remote attacker can send a specially crafted request and read arbitrary files on the system.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Rack: 2.1.0 - 2.1.2
External links
http://groups.google.com/g/rubyonrails-security/c/IOO1vNZTzPA
http://hackerone.com/reports/434404
http://lists.debian.org/debian-lts-announce/2020/07/msg00006.html
http://usn.ubuntu.com/4561-1/
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.