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CVE-2019-10143

Date: May 23, 2019

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."

Language: C

Severity Score

Related Resources (18)

https://access.redhat.com/errata/RHSA-2020:3984
http://seclists.org/fulldisclosure/2019/Nov/14
https://access.redhat.com/errata/RHSA-2019:3353
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TKODLHHUOVAYENTBP4D3N25ST3Q6LJBP/
https://freeradius.org/security/
https://access.redhat.com/security/cve/CVE-2019-10143
https://bugzilla.redhat.com/show_bug.cgi?id=1705340
https://security.alpinelinux.org/vuln/CVE-2019-10143
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10143
https://nvd.nist.gov/vuln/detail/CVE-2019-10143
http://packetstormsecurity.com/files/155361/FreeRadius-3.0.19-Logrotate-Privilege-Escalation.html
https://security-tracker.debian.org/tracker/CVE-2019-10143
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-10143
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6VKBZAZKJP5QKXDXRKCM2ZPZND3TFAX/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A6VKBZAZKJP5QKXDXRKCM2ZPZND3TFAX/
https://github.com/FreeRADIUS/freeradius-server/pull/2666
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TKODLHHUOVAYENTBP4D3N25ST3Q6LJBP/
https://www.mend.io/vulnerability-database/CVE-2019-10143

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

Execution with Unnecessary Privileges

CWE-250

Incorrect Privilege Assignment

CWE-266

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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