Freeipa: user can obtain a hash of the passwords of all domain users and perform offline brute force

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-3183
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-06-12 09:15:18 UTC
Updated2026-11-04 22:17:21 UTC
DescriptionA vulnerability was found in FreeIPA in a way when a Kerberos TGS-REQ is encrypted using the client’s session key. This key is different for each new session, which protects it from brute force attacks. However, the ticket it contains is encrypted using the target principal key directly. For user principals, this key is a hash of a public per-principal randomly-generated salt and the user’s password. If a principal is compromised it means the attacker would be able to retrieve tickets encrypted to any principal, all of them being encrypted by their own key directly. By taking these tickets and salts offline, the attacker could run brute force attacks to find character strings able to decrypt tickets when combined to a principal salt (i.e. find the principal’s password).

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS: 0.020530000 probability, percentile 0.813250000 (date 2026-11-04)

Problem Types: CWE-916 | CWE-916 Use of Password Hash With Insufficient Computational Effort

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.1CNACVSS8.1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux Aus 8.2 All All All
Operating System Redhat Enterprise Linux Aus 8.4 All All All
Operating System Redhat Enterprise Linux Aus 8.6 All All All
Operating System Redhat Enterprise Linux Eus 8.8 All All All
Operating System Redhat Enterprise Linux Tus 8.4 All All All
Operating System Redhat Enterprise Linux Tus 8.6 All All All
Operating System Redhat Enterprise Linux Update Services For Sap Solutions 8.4 All All All
Operating System Redhat Enterprise Linux Update Services For Sap Solutions 8.6 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Red Hat Red Hat Enterprise Linux 7 unaffected 0:4.6.8-5.el7_9.17 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 8100020240528133707.823393f5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support unaffected 8020020240530191103.792f4060 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support unaffected 8040020240528055121.5b01ab7e * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service unaffected 8040020240528055121.5b01ab7e * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.4 Update Services For SAP Solutions unaffected 8040020240528055121.5b01ab7e * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support unaffected 8060020240530061719.ada582f1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service unaffected 8060020240530061719.ada582f1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.6 Update Services For SAP Solutions unaffected 8060020240530061719.ada582f1 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support unaffected 8080020240530051744.b0a6ceea * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:4.11.0-15.el9_4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support unaffected 0:4.9.8-11.el9_0.3 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support unaffected 0:4.10.1-12.el9_2.2 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 10 Not specified Not specified

References

ReferenceSourceLinkTags
lists.fedoraproject.org/archives/list/[email protected]/messag... af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
bugzilla.redhat.com/show_bug.cgi af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Vendor Advisory
access.redhat.com/security/cve/CVE-2024-3183 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3761 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3759 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3757 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3755 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3758 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3754 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3756 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3760 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
access.redhat.com/errata/RHSA-2024:3775 af854a3a-2127-422b-91ae-364da2661108 access.redhat.com Vendor Advisory
www.freeipa.org/release-notes/4-12-1.html af854a3a-2127-422b-91ae-364da2661108 www.freeipa.org Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Red Hat would like to thank Mikhail Sukhov for reporting this issue. (en)

Additional Advisory Data

SourceTimeEvent
CNA2024-03-21T00:00:00.000ZReported to Red Hat.
CNA2024-06-10T00:00:00.000ZMade public.

Workarounds

CNA: To mitigate this vulnerability, ticket requests to user principals are now disallowed in FreeIPA realms by default. This will keep attackers from obtaining data encrypted with the user key directly.

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