CVE-2024-3183
HighCVSS 8.1Exploitation Probability (EPSS)
High risk81th percentile - higher than 81% of all known CVEs
Summary
In FreeIPA, Kerberos TGS tickets are encrypted using the target principal key directly, which for user principals is a hash of a per-principal salt and the user's password. If a principal is compromised, an attacker can retrieve tickets encrypted to any principal and run offline brute-force attacks to recover passwords.
Risk Assessment
The vulnerability can lead to disclosure of user and principal passwords through offline attacks, enabling privilege escalation and further compromise within the Kerberos domain. The risk affects environments using FreeIPA and Kerberos.
Recommendation
Update FreeIPA to a version containing the fix for this vulnerability. Also enforce strong passwords and rotate passwords of principals that may have been exposed.
Other vulnerabilities in FreeIPA
See all- CVE-2017-11191High
FreeIPA 4.x with API version 2.213 allows remote authenticated users to bypass intended account-locking restrictions via an unlock action with an old session ID (for the same user account) that had been created for an earlier session.
- CVE-2015-5179High
FreeIPA might display user data improperly via vectors involving non-printable characters.
- CVE-2016-7030High
FreeIPA uses a default password policy that locks an account after 5 unsuccessful authentication attempts. This allows remote attackers to cause a denial of service by locking out the account in which system services run on.
- CVE-2016-5414High
FreeIPA version 4.4.0 allows remote attackers to request an arbitrary SAN name for services.
- CVE-2026-76578Critical
A flaw was found in FreeIPA. The self-managed OTP token ACI does not require authentication and does not restrict which attributes may be added alongside the token entry. An unauthenticated LDAP client can exploit this, combined with a related flaw in the underlying directory server's ACI evaluation (tracked separately), to create an arbitrary attacker-controlled Kerberos principal and have it added to the administrators group. This allows a remote, unauthenticated attacker to obtain genuine FreeIPA administrator-group membership and perform administrative operations against the directory and, on SID-enabled deployments, other IdM services.
- CVE-2026-11861Critical
A flaw was found in FreeIPA. When a trust relationship is configured with Active Directory, AD users can bypass authentication for FreeIPA services by impersonating a client name in the TGS due to missing PAC certificate verification. This could allow an authenticated AD user to escalate privileges within the FreeIPA domain.
- CVE-2025-4404Critical
A privilege escalation from host to domain vulnerability was found in FreeIPA. The lack of uniqueness validation for the `krbCanonicalName` attribute of the admin account allows creating a service with the same canonical name as the REALM admin. A successful attack lets the attacker obtain a Kerberos ticket with admin@REALM credentials.
- CVE-2015-5284Critical
In FreeIPA before version 4.2.2, the ipa-kra-install script places the CA agent certificate and private key in /etc/httpd/alias/kra-agent.pem, which is world readable.
- CVE-2026-115221Medium
A flaw was found in FreeIPA. An improper authorization check allows an authenticated host to retrieve and revoke digital certificates assigned to other users or services. This issue occurs because FreeIPA verifies ownership solely by matching the host name to the certificate's subject Common Name (CN), without confirming actual ownership in the directory service. Consequently, an enrolled host can disrupt services by revoking certificates belonging to other entities.
- CVE-2026-18147High
A DOM-based Cross-Site Scripting (XSS) vulnerability exists in the FreeIPA/IdM Web UI password reset page. An unauthenticated remote attacker can exploit it by enticing a victim to click a crafted link and complete a password reset, allowing injection and execution of arbitrary JavaScript in the victim's session.
Original NVD description (English source)
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).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

