Path traversal in OpenBSD readdir

1) Path traversal

EUVDB-ID: #VU97414

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

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

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to input validation error when handling directory names in readdir. A local user can gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenBSD: 7.4 - 7.5

CPE2.3

• cpe:2.3:o:openbsd:openbsd:7.4:*:*:*:*:*:*:
• cpe:2.3:o:openbsd:openbsd:7.5:*:*:*:*:*:*:

External links

http://www.openbsd.org/errata75.html#009
http://www.openbsd.org/errata74.html#022

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.