CVE-2021-33393

 

Published at: - 10-06-2021 12:15

Last modified: - 18-01-2023 07:27

Total changes: - 5

Description

lfs/backup in IPFire 2.25-core155 does not ensure that /var/ipfire/backup/bin/backup.pl is owned by the root account. It might be owned by an unprivileged account, which could potentially be used to install a Trojan horse backup.pl script that is later executed by root. Similar problems with the ownership/permissions of other files may be present as well.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://github.com/ipfire/ipfire-2.x/commit/6769d909306d7bdc43d64598872126fcf1b217f6
• https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-05-17
• https://github.com/MucahitSaratar/ipfire-2-25-auth-rce
• http://packetstormsecurity.com/files/163158/IPFire-2.25-Remote-Code-Execution.html

 

Keywords

NVD

 

CVE-2021-33393

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures