Path traversal in ark (Alpine package)



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-16116
CWE-ID CWE-22
Exploitation vector Network
Public exploit N/A
Vulnerable software
 ark (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Path traversal

EUVDB-ID: #VU32924

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-16116

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

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 archive. A remote attacker can create a specially crafted archive, trick the victim into extracting files from it and overwrite arbitrary files on the system with privileges of the current user.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ark (Alpine package): 20.04.1-r0 - 20.04.3-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=2345d8c742a1c4a710d5ca05d0bad958683d7444
https://git.alpinelinux.org/aports/commit/?id=a6781fd68ae438ae750d6dc67b2ba0c54b028854


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.



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