bifrost

Bifrost \ /' | | | , | '| || , '/'\ /',| | | | || | | | , | | /' /'/\ Usage: ./bifrost -action dump | list | askhash | describe | asktgt | asktgs | s4u | ptt | remove For dump action: -source tickets | keytab for keytab, optional -path to specify a keytab for tickets, optional -name to specify a...

S4UTomato

S4UTomato Escalate Service Account To LocalSystem via Kerberos. Traditional Potatoes Friends familiar with the "Potato" series of privilege escalation should know that it can elevate service account privileges to local system privileges. The early exploitation techniques of "Potato" are almost...

rbcd-attack

Abusando de la Delegación Restringida Basada en Recursos de Kerberos TL;DR Este repositorio trata sobre un ataque práctico contra la Delegación Restringida Basada en Recursos de Kerberos en un Dominio de Active Directory de Windows. La diferencia con otras implementaciones comunes es que lanzamos...

EUVD-2019-5985

Malware in sbrugna...

Astra Linux – Vulnerability in freeipa

A vulnerability was discovered in FreeIPA regarding the initial implementation of MS-SFU by MIT Kerberos. This implementation lacked a condition for granting the “forwardable” flag on S4U2Self tickets. Fixing this issue required adding a special case for the checkallowedtodelegate function: If th...

CVE-2020-17049

It was found that the Kerberos Key Distribution Center KDC delegation feature, Service for User S4U, did not sufficiently protect the tickets it's providing from tempering. A malicious, authenticated service principal allowed to delegate could use this flaw to impersonate a non-forwardable user...

November 14, 2021—KB5008602(OS Build 17763.2305) Out-of-band

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July 13, 2021—KB5004285 (Security-only update)

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July 13, 2021—KB5004307 (Security-only update)

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July 13, 2021—KB5004299 (Security-only update)

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July 13, 2021—KB5004305 (Monthly Rollup)

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July 13, 2021—KB5004302 (Security-only update)

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November 19, 2020—KB4594441 (OS Build 14393.4048) Out-of-band

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Kerberos authentication and ticket renewal issues on Windows Server 2012 R2 - Out-of-band

Kerberos authentication and ticket renewal issues on Windows Server 2012 R2 - Out-of-band Applies to: Windows Server 2012 R2 Windows Server 2012 R2 Server Core installation NEW 11/17/20 For information about Windows update terminology, see the article about the types of Windows updates and the...

Fedora 32 : 2:samba / krb5 (2020-939681213a)

KRB5 : - Cross-realm s4u fixes for samba 1836630 - Drop unnecessary conflict with openssl-libs = 3.0.0 - Unify kvno option documentation - Use systemctl reload to HUP the KDC during logrotate SAMBA : - Support S4U operations for Samba AD DC 1836630 - Fix lookup of users and groups when realm used...

EulerOS Virtualization 3.0.6.0 : samba (EulerOS-SA-2020-1746)

According to the versions of the samba packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U MS-SFU Kerbero...

EulerOS 2.0 SP8 : samba (EulerOS-SA-2020-1032)

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to,...

Samba 4.x < 4.9.17 / 4.10.x < 4.10.11 / 4.11.x < 4.11.3 Multiple Vulnerabilities

The version of Samba running on the remote host is 4.x prior to 4.9.17, 4.10.x prior to 4.10.11, or 4.11.x prior to 4.11.3. It is, therefore, affected by multiple vulnerabilities: - A denial of service DoS vulnerability exists in the ldbqsort and dnsnamecompare routines due to how the routines...

Authentication flaw

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U MS-SFU Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos...

CVE-2019-14870

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U MS-SFU Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos...