freeradius: privilege escalation due to insecure logrotate configuration
Published May 24, 2019
7.0
HIGHCVSS 3.1
EPSS 0.34%
Description
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."
Affected products
-
- Version affects <= 3.0.19StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Freeradius | Freeradius | n/a |
|
Configuration 1
- ≤ 3.0.19
Configuration 2
- 29
- 30
Configuration 3
- 8.0
-
- Version 29StatusaffectedConstraints-
- Version 30StatusaffectedConstraints-
- Version
-
- Version 0StatusaffectedConstraints<=3.0.19
- Version
-
- Version 8.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fedora Project | Fedora | n/a |
| |||||||||
| Freeradius | Freeradius | n/a |
| |||||||||
| Red Hat | Enterprise Linux | n/a |
|
Red Hat Enterprise Linux 7
freeradius-0:3.0.13-15.el7
Fixed · RHSA-2020:3984
Red Hat Enterprise Linux 8
freeradius:3.0-8010020190614154208.16b3ab4d
Fixed · RHSA-2019:3353
Red Hat Enterprise Linux 5
freeradius
Out of support scope
Red Hat Enterprise Linux 5
freeradius2
Out of support scope
Red Hat Enterprise Linux 6
freeradius
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | freeradius-0:3.0.13-15.el7 | Fixed | RHSA-2020:3984 |
| Red Hat Enterprise Linux 8 | freeradius:3.0-8010020190614154208.16b3ab4d | Fixed | RHSA-2019:3353 |
| Red Hat Enterprise Linux 5 | freeradius | Out of support scope | n/a |
| Red Hat Enterprise Linux 5 | freeradius2 | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | freeradius | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
Add `su radiusd:radiusd` to all log sections in /etc/logrotate.d/radiusd. By keeping SELinux in "Enforcing" mode, radiusd user will be limited in the directories he can write to.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Aug 1, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.34% (0.00345) | 25.67th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.34% (0.00345) | 28.14th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.06% (0.00056) | 24.02th | v3 (v2023.03.01) |
| Jun 18, 2024 | 0.06% (0.00056) | 23.57th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00056) | 21.56th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Mar 31, 2022 | 4.41% (0.04411) | 71.44th | v2 (v2022.01.01) |
| Jan 6, 2022 | 4.33% (0.04329) | 74.46th | v1 |
| Jan 5, 2022 | 1.00% (0.00999) | 63.13th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.00% (0.00999) | 0.00th | v1 |
References (12)
- http://packetstormsecurity.com/files/155361/FreeRadius-3.0.19-Logrotate-Privilege-Escalation.html ExploitThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2019/Nov/14 mailing-listExploitMailing ListThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3353 vendor-advisoryThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-10143 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1705340 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10143 Issue TrackingThird Party Advisory
- https://freeradius.org/security/ Third Party Advisory
- https://github.com/FreeRADIUS/freeradius-server/pull/2666 Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6VKBZAZKJP5QKXDXRKCM2ZPZND3TFAX/ vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TKODLHHUOVAYENTBP4D3N25ST3Q6LJBP/ vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-10143
- https://www.cve.org/CVERecord?id=CVE-2019-10143
Change history (0)
No recorded changes yet.