Vulnerability identifier: #VU66827

Vulnerability risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2022-38794

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zaver
Server applications / File servers (FTP/HTTP)

Vendor: zyearn

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 within the GET /.. substring. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Zaver: 2020-12-15

---

External links
http://github.com/zyearn/zaver/issues/22

---

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.