Vulnerability identifier: #VU73872

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-2022-29804

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Go programming language
Universal components / Libraries / Scripting languages

Vendor: Google

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error within the filepath.Clean function on Windows, which can convert certain invalid paths to valid, absolute paths, potentially allowing a directory traversal attack. A remote attacker can pass specially crafted data to the application and perform directory traversal attacks.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Go programming language: 1.18 - 1.18.2, 1.17 - 1.17.10

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External links
http://go.googlesource.com/go/+/9cd1818a7d019c02fa4898b3e45a323e35033290
http://groups.google.com/g/golang-announce/c/TzIC9-t8Ytg/m/IWz5T6x7AAAJ
http://pkg.go.dev/vuln/GO-2022-0533
http://go.dev/cl/401595
http://go.dev/issue/52476

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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.