Kerberos Authentication Spoofing: Don’t Bypass the Spec

Authentication is the front gate to security systems, so if you bypass it, you can pretty much do whatever you want. You can log in as an admin and change configurations, access protected resources and gain control of appliances to steal sensitive data from them. For these reasons, the...

AD Starter Scan - Kerberos Pre-authentication Validation

Binary data adsikerberospreauth.nbin...

Debian: Security Advisory (DSA-4944-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

[SECURITY] [DSA 4944-1] krb5 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4944-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso July 25, 2021 https://www.debian.org/security/faq -...

[SECURITY] [DSA 4944-1] krb5 security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4944-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso July 25, 2021 https://www.debian.org/security/faq -...

ALPINE-CVE-2021-36222

ecverify in kdc/kdcpreauthec.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation...

Null pointer dereference

ecverify in kdc/kdcpreauthec.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation...

CVE-2021-36222

ecverify in kdc/kdcpreauthec.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation...

CVE-2021-36222

ecverify in kdc/kdcpreauthec.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation...

CVE-2021-36222

ecverify in kdc/kdcpreauthec.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation...

CVE-2021-36222

A flaw was found in krb5. This flaw allows an unauthenticated attacker to cause a NULL dereference in the KDC by sending a request containing a PA-ENCRYPTED-CHALLENGE padata element without using FAST. The highest threat from this vulnerability is to system availability...

Authentication flaw

On version 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x before 12.1.6, and all versions of 16.0.x and 11.6.x., BIG-IP APM AD Active Directory authentication can be bypassed via a spoofed AS-REP Kerberos Authentication Service Response response sent over a hijacked KDC...

F5 Networks BIG-IP : BIG-IP APM AD authentication vulnerability (K51213246)

The version of F5 Networks BIG-IP installed on the remote host is prior to 12.1.6 / 13.1.4 / 14.1.4 / 15.1.3 / 16.1.0. It is, therefore, affected by a vulnerability as referenced in the K51213246 advisory. - On version 15.1.x before 15.1.3, 14.1.x before 14.1.4, 13.1.x before 13.1.4, 12.1.x befor...

F5 BIG-IP Found Vulnerable to Kerberos KDC Spoofing Vulnerability

Cybersecurity researchers on Wednesday disclosed a new bypass vulnerability CVE-2021-23008 in the Kerberos Key Distribution Center KDC security feature impacting F5 Big-IP application delivery services. "The KDC Spoofing vulnerability allows an attacker to bypass the Kerberos authentication to...

EulerOS Virtualization for ARM 64 3.0.2.0 : krb5 (EulerOS-SA-2021-1403)

According to the versions of the krb5 packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - Kerberos is a network authentication system. The krb5-server package contains the programs that must be installed on a...

Huawei EulerOS: Security Advisory for krb5 (EulerOS-SA-2021-1403)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

NewStart CGSL CORE 5.05 / MAIN 5.05 : krb5 Vulnerability (NS-SA-2020-0103)

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has krb5 packages installed that are affected by a vulnerability: - A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 aka krb5 before 1.17. If an attacker can obtain a krbtgt ticket using an older encrypti...

Kerberos KDC の脆弱性 (CVE-2020-17049) に対応するためのガイダンス

マイクロソフトは、2020 年 11 月 10 日 米国時間 に、Kerberos KDC Key Distribution Center に対する脆弱性情報 CVE-2020-17049 を公...

AZL-10661 CVE-2020-17049 affecting package samba 4.12.5-7

A security feature bypass vulnerability exists in the way Key Distribution Center KDC determines if a service ticket can be used for delegation via Kerberos Constrained Delegation KCD. To exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service...

CVE-2020-17049

A security feature bypass vulnerability exists in the way Key Distribution Center KDC determines if a service ticket can be used for delegation via Kerberos Constrained Delegation KCD. To exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service...