CVE-2021-33393
high-risk
Published 2021-06-09
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.
Do I need to act?
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72.2% chance of exploitation in next 30 days
EPSS score — higher than 28% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (15)
Affected Vendors
References (8)
Third Party Advisory
https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-...
Third Party Advisory
https://github.com/ipfire/ipfire-2.x/commits/master?since=2021-05-17&until=2021-...
67
/ 100
high-risk
Severity
30/34 · Critical
Exploitability
19/34 · Moderate
Exposure
18/34 · Moderate