Vulnerability identifier: #VU83322

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7667

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
go-rpmutils
Universal components / Libraries / Libraries used by multiple products

Vendor:

Description

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

The vulnerability exists due to CPIO extraction functionality doesn't sanitize the paths of the archived files for leading and non-leading ".." which leads in file extraction outside of the current directory. 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

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External links
http://github.com/sassoftware/go-rpmutils/commit/a64058cf21b8aada501bba923c9aab66fb6febf0
http://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMSASSOFTWAREGORPMUTILSCPIO-570427

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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.