Vulnerability identifier: #VU93285

Vulnerability risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-5742

CWE-ID: CWE-61

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
nano
Other software / Other software solutions

Vendor: GNU

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with privileges of the application.

Successful exploitation of this vulnerability may result in privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

nano: 0.1.0 - 7.2

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External links
http://access.redhat.com/security/cve/CVE-2024-5742
http://bugzilla.redhat.com/show_bug.cgi?id=2278574
http://lists.debian.org/debian-lts-announce/2024/06/msg00006.html
http://git.savannah.gnu.org/cgit/nano.git/commit/?id=5e7a3c2e7e118c7f12d5dfda9f9140f638976aa2

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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.