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9.8 Critical

CVE-2026-76578 Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci

Description

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.

CVSS 3.1 detail

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

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Network
Attack complexity
Low
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 8100020261007070536.823393 earliest → < 8100020261007070536.823393f5 8100020261007070536.823393f5
Red Hat Enterprise Linux 9 Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Versions not published
Show the 7 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux 8.8 Telecommunications Update Service 8080020261007071832 earliest → < 8080020261007071832.b0a6ceea 8080020261007071832.b0a6ceea
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 8080020261007071832 earliest → < 8080020261007071832.b0a6ceea 8080020261007071832.b0a6ceea
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 8060020261008133528 earliest → < 8060020261008133528.ada582f1 8060020261008133528.ada582f1
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On 8060020261008133528 earliest → < 8060020261008133528.ada582f1 8060020261008133528.ada582f1
Red Hat Enterprise Linux 7 Extended Lifecycle Support Versions not published
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 8040020261027121355.5 earliest → < 8040020261027121355.5b01ab7e 8040020261027121355.5b01ab7e
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 8040020261027121355.5 earliest → < 8040020261027121355.5b01ab7e 8040020261027121355.5b01ab7e

References

Timeline

  1. Published
  2. Last modified

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