Security Bulletin: Vulnerability in Kerberos affects Power Hardware Management Console ( CVE-2018-5730 CVE-2018-5729)

2021-09-2223:05:38

www.ibm.com

mit krb5 vulnerability

ldap kerberos database

authenticated attacker

bypass

dn container check

cve-2018-5730

cve-2018-5729

power hmc

denial of service

EPSS

0.003

Percentile

70.9%

JSON

Summary

MIT krb5 1.6 or later allows an authenticated kadmin with permission to add principals to an LDAP Kerberos database to circumvent a DN containership check by supplying both a “linkdn” and “containerdn” database argument, or by supplying a DN string which is a left extension of a container DN string but is not hierarchically within the container DN.

CVE-2018-5729: null dereference in kadmind or DN container check bypass by supplying special crafted data

Vulnerability Details

CVEID: CVE-2018-5730
DESCRIPTION: MIT krb5 could allow a remote authenticated attacker to bypass security restrictions, caused by a flaw in the LDAP Kerberos database. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass DN container check.
CVSS Base Score: 6.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/139970> for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)

CVEID: CVE-2018-5729
DESCRIPTION: MIT krb5 is vulnerable to a denial of service, caused by a NULL pointer dereference in the LDAP Kerberos database. By sending specially-crafted data, a remote authenticated attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 6.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/139969> for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)