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

Description

A 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).

Scores

EPSS (exploitation in 30 days)

2.1% · top 19% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.

Weakness

• CWE-916: Use of Password Hash With Insufficient Computational Effort (opens in a new tab)All about CWE-916 and its CVEs

Affected products

• freeipa

  • unaffected 4.12.1

• Red Hat · Red Hat Enterprise Linux 7

  • unaffected 0:4.6.8-5.el7_9.17 – < *

• Red Hat · Red Hat Enterprise Linux 8

  • unaffected 8100020240528133707.823393f5 – < *

• Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support

  • unaffected 8020020240530191103.792f4060 – < *

• Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

  • unaffected 8040020240528055121.5b01ab7e – < *

• Red Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update Service

  • unaffected 8040020240528055121.5b01ab7e – < *

• Red Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions

  • unaffected 8040020240528055121.5b01ab7e – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

  • unaffected 8060020240530061719.ada582f1 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service

  • unaffected 8060020240530061719.ada582f1 – < *

• Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions

  • unaffected 8060020240530061719.ada582f1 – < *

• Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Support

  • unaffected 8080020240530051744.b0a6ceea – < *

• Red Hat · Red Hat Enterprise Linux 9

  • unaffected 0:4.11.0-15.el9_4 – < *

• Red Hat · Red Hat Enterprise Linux 9.0 Extended Update Support

  • unaffected 0:4.9.8-11.el9_0.3 – < *

• Red Hat · Red Hat Enterprise Linux 9.2 Extended Update Support

  • unaffected 0:4.10.1-12.el9_2.2 – < *

• Red Hat · Red Hat Enterprise Linux 10

  All versions: unaffected

What to do

Workaround: 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.

References (13)

• RHSA-2024:3754 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2024:3755 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2024:3756 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2024:3757 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2024:3758 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2024:3759 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2024:3760 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2024:3761 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• RHSA-2024:3775 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• https://access.redhat.com/security/cve/CVE-2024-3183 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
• RHBZ#2270685 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
• https://www.freeipa.org/release-notes/4-12-1.html (opens in a new tab)x_transferred
• https://lists.fedoraproject.org/archives/list/[email protected]/message/WT3JL7JQDIAFKKEFARWYES7GZNWGQNCI/ (opens in a new tab)x_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2024-3183](https://trackcve.app/badge/CVE-2024-3183.svg)](https://trackcve.app/cve/CVE-2024-3183)

Record last updated 4 Nov 2026, 21:11 UTC.