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8.0 High

CVE-2026-14476 Sssd: sssd: gpo cache path traversal via unsanitized gpcfilesyspath allows kerberos authentication bypass

Description

A path traversal flaw was found in SSSD's AD GPO provider. The ad_gpo_extract_smb_components() function does not sanitize .. sequences in the gPCFileSysPath LDAP attribute, allowing an attacker with AD GPO management access to write files outside the GPO cache directory as root. On default RHEL configurations with SELinux enforcing, this can be used to inject Kerberos configuration leading to authentication bypass.

CVSS 3.1 detail

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

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

Attack vector
Network
Attack complexity
High
Privileges required
High
Interaction
None
Scope
Changed
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 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat OpenShift Container Platform 4 Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Versions not published
Show the 20 other branches
Product Affected versions Fixed in
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Versions not published
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published
Red Hat Enterprise Linux 7 Extended Lifecycle Support Versions not published
Red Hat OpenShift Container Platform 4.21 4.21 earliest → < 4.21.9.6.202608122143-0 4.21.9.6.202608122143-0
Red Hat OpenShift Container Platform 4.20 4.20 earliest → < 4.20.9.6.202608121719-0 4.20.9.6.202608121719-0
Red Hat OpenShift Container Platform 4.22 4.22 earliest → < 4.22.9.8.202608130832-0 4.22.9.8.202608130832-0
Red Hat OpenShift Container Platform 4.13 413.92 earliest → < 413.92.202608111330-0 413.92.202608111330-0
Red Hat OpenShift Container Platform 4.18 418.94 earliest → < 418.94.202608142238-0 418.94.202608142238-0
Red Hat OpenShift Container Platform 4.19 4.19 earliest → < 4.19.9.6.202608120446-0 4.19.9.6.202608120446-0
Red Hat OpenShift Container Platform 4.14 414.92 earliest → < 414.92.202608172040-0 414.92.202608172040-0
Red Hat OpenShift Container Platform 4.15 415.92 earliest → < 415.92.202608180329-0 415.92.202608180329-0
Red Hat OpenShift Container Platform 4.16 416.94 earliest → < 416.94.202608150307-0 416.94.202608150307-0
Red Hat OpenShift Container Platform 4.12 412.86 earliest → < 412.86.202608241157-0 412.86.202608241157-0
Red Hat OpenShift Container Platform 4.17 417.94 earliest → < 417.94.202608250221-0 417.94.202608250221-0
Red Hat OpenShift Container Platform 5 Versions not published

References

Timeline

  1. Published
  2. Last modified

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