Privilege escalation in Freeradius
CVE-2019-10143
It was discovered freeradius up to and including version 3.0.19 does not correctly configure logrotate, allowing a local attacker who already has control of the radiusd user to escalate his privileges to root, by tricking logrotate into writing a radiusd-writable file to a directory normally inaccessible by the radiusd user. NOTE: the upstream software maintainer has stated "there is simply no way for anyone to gain privileges through this alleged issue."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (25.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Freeradius — versions affects <= 3.0.19
- Fedoraproject Fedora — versions 29, 30
- Red Hat Enterprise Linux — versions 8.0
Weakness classification (CWE)
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:3353 (vendor-advisory, Third Party Advisory)
- seclists.org/fulldisclosure/2019/Nov/14 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- freeradius.org/security/ (Third Party Advisory)
- packetstormsecurity.com/files/155361/FreeRadius-3.0.19-Logrotate-Privilege-Esca… (Exploit, VDB Entry, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/FreeRADIUS/freeradius-server/pull/2666 (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-10143?
- CVE-2019-10143 is a high-severity vulnerability in Freeradius, classified under CWE-250. CVSS score: 7.0/10. Published 2019-05-24.
- How severe is CVE-2019-10143?
- High severity. CVSS v3 base score is 7.0 out of 10.