SB2023050934 - Red Hat Enterprise Linux 9 update for krb5

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Main Vulnerability Database SB2023050934

SB2023050934 - Red Hat Enterprise Linux 9 update for krb5

Published: May 9, 2023

Security Bulletin ID SB2023050934
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Security Features (CVE-ID: CVE-2020-17049)

CWE-ID: CWE-254 - Security Features

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to bypass authentication process.

The vulnerability exists due to security feature bypass issue in Kerberos. A remote administrator can bypass authentication process and gain unauthorized access to the application.


2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2022-37967)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote administrator to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Kerberos, which leads to security restrictions bypass and privilege escalation.


Remediation

Install update from vendor's website.

References