CVE-2021-33393

HIGH

IPFire 2.25-core155 - Privilege Escalation

Title source: llm

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.

Exploits (2)

exploitdb WORKING POC

by Mücahit Saratar · pythonwebappscgi

https://www.exploit-db.com/exploits/49869

View Code ZIP pw:eip

metasploit WORKING POC EXCELLENT

by Mücahit Saratar <[email protected]>, Grant Willcox · rubypocpython

https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/ipfire_pakfire_exec.rb

View Code ZIP pw:eip

References (4)

[Exploit, Third Party Advisory, VDB Entry] http://packetstormsecurity.com/files/163158/IPFire-2.25-Remote-Code-Execution.html

[Exploit, Third Party Advisory] https://github.com/MucahitSaratar/ipfire-2-25-auth-rce

[Patch, Third Party Advisory] https://github.com/ipfire/ipfire-2.x/commit/6769d909306d7bdc43d64598872126fcf1b217f6

[Third Party Advisory] https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-05-17

Scores

CVSS v3 8.8

EPSS 0.7218

EPSS Percentile 98.8%

Attack Vector NETWORK

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

Details

Status published

Products (2)

ipfire/ipfire 2.25 core_update141 (14 CPE variants)

ipfire/ipfire < 2.25

Published Jun 09, 2021

Tracked Since Feb 18, 2026