#VU87912 Path traversal in Ray - CVE-2023-6020

Vulnerability identifier: #VU87912

Vulnerability risk: Medium

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Green]

CVE-ID: CVE-2023-6020

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Ray
Web applications / Other software

Vendor: Anyscale

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. A remote attacker can send a specially crafted HTTP request to the /static/ directory and read arbitrary files on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Ray: 0.1.0 - 2.8.0

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External links
https://huntr.com/bounties/83dd8619-6dc3-4c98-8f1b-e620fedcd1f6
https://www.anyscale.com/blog/update-on-ray-cves-cve-2023-6019-cve-2023-6020-cve-2023-6021-cve-2023-48022-cve-2023-48023

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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, a fully functional exploit for this vulnerability is available.