Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ipfire | Ipfire | < 2.25 |
References
- http://packetstormsecurity.com/files/163158/IPFire-2.25-Remote-Code-Execution.htExploitThird Party AdvisoryVDB Entry
- https://github.com/MucahitSaratar/ipfire-2-25-auth-rceExploitThird Party Advisory
- https://github.com/ipfire/ipfire-2.x/commit/6769d909306d7bdc43d64598872126fcf1b2PatchThird Party Advisory
- https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-Third Party Advisory
- http://packetstormsecurity.com/files/163158/IPFire-2.25-Remote-Code-Execution.htExploitThird Party AdvisoryVDB Entry
- https://github.com/MucahitSaratar/ipfire-2-25-auth-rceExploitThird Party Advisory
- https://github.com/ipfire/ipfire-2.x/commit/6769d909306d7bdc43d64598872126fcf1b2PatchThird Party Advisory
- https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-Third Party Advisory
FAQ
What is CVE-2021-33393?
CVE-2021-33393 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 i...
How severe is CVE-2021-33393?
CVE-2021-33393 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-33393?
Check the references section above for vendor advisories and patch information. Affected products include: Ipfire Ipfire.