AlmaLinux 8 : idm:DL1 (ALSA-2024:0143)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:0143 advisory. Kerberos: delegation constrain bypass in S4U2Proxy CVE-2020-17049 ipa: Invalid CSRF protection CVE-2023-5455 Tenable has extracted the preceding descripti...

Kerberos: delegation constrain bypass in S4U2Proxy

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...

CentOS 8 : idm:DL1 (CESA-2024:0143)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2024:0143 advisory. - A security feature bypass vulnerability exists in the way Key Distribution Center KDC determines if a service ticket can be used for delegation via...

January 9, 2024—KB5034129 (OS Build 20348.2227)

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NewStart CGSL MAIN 5.04 : krb5 Multiple Vulnerabilities (NS-SA-2023-0102)

The remote NewStart CGSL host, running version MAIN 5.04, has krb5 packages installed that are affected by multiple vulnerabilities: - The Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/dotgsreq.c via a FAST inne...

krb5: double-free in KDC TGS processing

A vulnerability was found in MIT krb5, where an authenticated attacker can cause a KDC to free the same pointer twice if it can induce a failure in authorization data handling...

Double Free

libkrb5.so is vulnerable to Double Free. The vulnerability exists due to a failure in authorization data handling in the dotgsreq.c, which allows an attacker to cause the Key Distribution Center KDC to free the same pointer twice when incorrect data is copied from one ticket to another...

Anomaly detection in certificate-based TGT requests

One of the most complex yet effective methods of gaining unauthorized access to corporate network resources is an attack using forged certificates. Attackers create such certificates to fool the Key Distribution Center KDC into granting access to the target companys network. An example of such an...

UBUNTU-CVE-2023-3326

pamkrb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket tgt from the Kerberos KDC Key Distribution Center over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pamkrb5 has no way to validate...

Default credentials

pamkrb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket tgt from the Kerberos KDC Key Distribution Center over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pamkrb5 has no way to validate...

Moderate: Red Hat Security Advisory: krb5 security, bug fix, and enhancement update

An update for krb5 is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

USN-5959-1 krb5 vulnerabilities

It was discovered that Kerberos incorrectly handled memory when processing KDC data, which could lead to a NULL pointer dereference. An attacker could possibly use this issue to cause a denial of service or have other unspecified impacts. CVE-2021-36222, CVE-2021-37750...

SUSE CVE-2005-1175

Heap-based buffer overflow in the Key Distribution Center KDC in MIT Kerberos 5 krb5 1.4.1 and earlier allows remote attackers to cause a denial of service application crash and possibly execute arbitrary code via a certain valid TCP or UDP request...

SUSE CVE-2005-1174

MIT Kerberos 5 krb5 1.3 through 1.4.1 Key Distribution Center KDC allows remote attackers to cause a denial of service application crash via a certain valid TCP connection that causes a free of unallocated memory...

SUSE CVE-2009-3295

The prepreprocessreq function in kdc/dotgsreq.c in the cross-realm referral implementation in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.7 before 1.7.1 allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via a ticket request...

SUSE CVE-2010-1320

Double free vulnerability in dotgsreq.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.7.x and 1.8.x before 1.8.2 allows remote authenticated users to cause a denial of service daemon crash or possibly execute arbitrary code via a request associated with 1 renewal or 2 validation...

SUSE CVE-2010-1322

The mergeauthdata function in kdcauthdata.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.8.x before 1.8.4 does not properly manage an index into an authorization-data list, which allows remote attackers to cause a denial of service daemon crash, or possibly obtain sensitive...

SUSE CVE-2010-1323

MIT Kerberos 5 aka krb5 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center KDC, or forge a KRB-SAFE message via...

SUSE CVE-2011-1530

The processtgsreq function in dotgsreq.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service NULL pointer dereference and daemon crash via a crafted TGS request that triggers an error other than the...

SUSE CVE-2011-1529

The lookuplockoutpolicy function in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 1.8 through 1.8.4 and 1.9 through 1.9.1, when the db2 aka Berkeley DB or LDAP back end is used, allows remote attackers to cause a denial of service NULL pointer dereference and daemon crash via vectors...