Freeipa: user can obtain a hash of the passwords of all domain users and perform offline brute force (CVE-2024-3183)
Published Sources: CVE.org
What is affected, what to do
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.
Update Red Hat Enterprise Linux 7 to version 0:4.6.8-5.el7_9.17, Red Hat Enterprise Linux 8 to version 8100020240528133707.823393f5, Red Hat Enterprise Linux 8.2 Advanced Update Support to version 8020020240530191103.792f4060.
- Affected
- Red Hat Enterprise Linux 7
lt *..0:4.6.8-5.el7_9.17 - Red Hat Enterprise Linux 8
lt *..8100020240528133707.823393f5 - Red Hat Enterprise Linux 8.2 Advanced Update Support
lt *..8020020240530191103.792f4060 - Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
lt *..8040020240528055121.5b01ab7e - Red Hat Enterprise Linux 8.4 Telecommunications Update Service
lt *..8040020240528055121.5b01ab7e - Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
lt *..8040020240528055121.5b01ab7e - Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
lt *..8060020240530061719.ada582f1 - Red Hat Enterprise Linux 8.6 Telecommunications Update Service
lt *..8060020240530061719.ada582f1 - Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
lt *..8060020240530061719.ada582f1 - Red Hat Enterprise Linux 8.8 Extended Update Support
lt *..8080020240530051744.b0a6ceea - Red Hat Enterprise Linux 9
lt *..0:4.11.0-15.el9_4 - Red Hat Enterprise Linux 9.0 Extended Update Support
lt *..0:4.9.8-11.el9_0.3 - Red Hat Enterprise Linux 9.2 Extended Update Support
lt *..0:4.10.1-12.el9_2.2
- Red Hat Enterprise Linux 7
- Fixed in
- Red Hat Enterprise Linux 7
0:4.6.8-5.el7_9.17 - Red Hat Enterprise Linux 8
8100020240528133707.823393f5 - Red Hat Enterprise Linux 8.2 Advanced Update Support
8020020240530191103.792f4060 - Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
8040020240528055121.5b01ab7e - Red Hat Enterprise Linux 8.4 Telecommunications Update Service
8040020240528055121.5b01ab7e - Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
8040020240528055121.5b01ab7e - Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
8060020240530061719.ada582f1 - Red Hat Enterprise Linux 8.6 Telecommunications Update Service
8060020240530061719.ada582f1 - Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
8060020240530061719.ada582f1 - Red Hat Enterprise Linux 8.8 Extended Update Support
8080020240530051744.b0a6ceea - Red Hat Enterprise Linux 9
0:4.11.0-15.el9_4 - Red Hat Enterprise Linux 9.0 Extended Update Support
0:4.9.8-11.el9_0.3 - Red Hat Enterprise Linux 9.2 Extended Update Support
0:4.10.1-12.el9_2.2
- Red Hat Enterprise Linux 7
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Metrics
8.1
Priority
XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.
Source: NVD, CVSS v3
8.1
CVSS v3
Severity High on the scale from 0 to 10.
Source: CVE.org
2.0 %
EPSS score
Moderate — model estimates 1-10% exploitation likelihood.
Source: FIRST EPSS, percentile 81.0
Show all metrics
- Severity
- High
Priority (0–325)
The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?
Read in glossary- 98.40 Methodology
Exploit maturity
An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.
Read in glossary- no public PoC known
XIEM Effective CVSS
XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.
Read in glossary- 8.1 Methodology
CVSS v3
CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.
Read in glossary- 8.1
EPSS score
The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.
Read in glossary- 2.0 %
- Moderate — model estimates 1-10% exploitation likelihood.
EPSS percentile
The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.
Read in glossary- 81.0
- Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
KEV status
The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.
Read in glossary- —
- Published
CWE
CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.
Read in glossary- CWE-916
Detection rules
No NEOSEC detection rule is available for this vulnerability yet.
Classification under NIS2 and CRA
Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.
NIS2
NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.
Read in glossary- High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
CRA
The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.
Read in glossary- From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001
ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.
Read in glossary- Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.
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).
Source: NVD (NIST), cvelistv5
Affected products
The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.
| Affected versions | Fixed in | ||
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
|
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service |
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions |
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service |
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support |
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
|
|
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support |
|
|
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support |
|
|
Vendors and products
- Red Hat Red Hat Enterprise Linux 10
- Red Hat Red Hat Enterprise Linux 7
- Red Hat Red Hat Enterprise Linux 8
- Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service
- Red Hat Red Hat Enterprise Linux 8.4 Update Services For Sap Solutions
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service
- Red Hat Red Hat Enterprise Linux 8.6 Update Services For Sap Solutions
- Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support
- Red Hat Red Hat Enterprise Linux 9
Affected operating systems
| Linux | redhat | enterprise_linux | 7.0 |
| Linux | redhat | enterprise_linux | 8.0 |
| Linux | redhat | enterprise_linux_aus | 8.2 |
| Linux | redhat | enterprise_linux_aus | 8.4 |
| Linux | redhat | enterprise_linux_aus | 8.6 |
| Linux | redhat | enterprise_linux_eus | 8.8 |
| Linux | redhat | enterprise_linux_tus | 8.4 |
| Linux | redhat | enterprise_linux_tus | 8.6 |
| Linux | redhat | enterprise_linux_update_services_for_sap_solutions | 8.4 |
| Linux | redhat | enterprise_linux_update_services_for_sap_solutions | 8.6 |
Weakness classes (CWE)
CWE-916Use of Password Hash With Insufficient Computational Effort
Base
The product generates a hash for a password, but it uses a scheme that does not provide a sufficient level of computational effort that would make password cracking attacks infeasible or expensive.
Entry at MITRE CWE-916
References & sources
- access.redhat.comRHSA-2024:3754Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comRHSA-2024:3755Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comRHSA-2024:3756Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comRHSA-2024:3757Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comRHSA-2024:3758Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comRHSA-2024:3759Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comRHSA-2024:3760Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comRHSA-2024:3761Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comRHSA-2024:3775Vendor advisory, x_refsource_REDHAT, Vendor advisory
- access.redhat.comsecurity/cve/CVE-2024-3183Vulnerability database, x_refsource_REDHAT, Vendor advisory
- bugzilla.redhat.comRHBZ#2270685Issue tracking, x_refsource_REDHAT, Issue tracking, Vendor advisory
- freeipa.orgrelease-notes/4-12-1.htmlRelease notes
- lists.fedoraproject.orgarchives/list/package-announce@lists.fedoraproject.org/message/…x_transferred
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<a href="https://intel.neosec.eu/en/cve/CVE-2024-3183"><img src="https://intel.neosec.eu/badge/cve/CVE-2024-3183.svg?lang=en" alt="CVE-2024-3183 – NEOSEC Intel" height="20"></a>