Confusing error message in libarchive

1) Insufficient UI Warning of Dangerous Operations

EUVDB-ID: #VU88217

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-357 - Insufficient UI Warning of Dangerous Operations

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to a confusing error message in libarchive when attempting to modify a directory without sufficient permissions. A remote attacker can trick the victim into extracting a specially crafted archive, which can have some security impact on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libarchive: 3.0 - 3.5.3

External links

http://github.com/libarchive/libarchive/commit/f27c173d17dc807733b3a4f8c11207c3f04ff34f
http://github.com/libarchive/libarchive/pull/2101
http://github.com/libarchive/libarchive/pull/1609
http://github.com/libarchive/libarchive/issues/1561

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted archive.

Is there known malware, which exploits this vulnerability?

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