#VU67556 Path traversal in Go programming language - CVE-2022-32190

Vulnerability identifier: #VU67556

Vulnerability risk: Medium

CVSSv4.0: 6.6 [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:U/U:Green]

CVE-ID: CVE-2022-32190

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 when processing directory traversal sequences within JoinPath and URL.JoinPath. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Go programming language: 1.18 - 1.19

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External links
https://go.dev/cl/423514
https://groups.google.com/g/golang-announce/c/x49AQzIVX-s
https://pkg.go.dev/vuln/GO-2022-0988
https://go.dev/issue/54385
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXKTHIGE5F576MAPFYCIJXNRGBSPISUF/

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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.