SB2023040604 - Amazon Linux AMI update for sssd

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Main Vulnerability Database SB2023040604

SB2023040604 - Amazon Linux AMI update for sssd

Published: April 6, 2023

Security Bulletin ID SB2023040604
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Command Injection (CVE-ID: CVE-2021-3621)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper input validation in the sssctl command within the logs-fetch and cache-expire subcommands. An attacker can trick the root user into running a specially crafted sssctl command, such as via sudo, and execute arbitrary code with root privileges.


2) LDAP injection (CVE-ID: CVE-2022-4254)

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to improper input validation in libsss_certmap functionality when validating data used in DLAP queries. A remote non-authenticated attacker can use a specially crafted certificate to bypass authentication process and gain control of the admin account, leading to full domain takeover.


Remediation

Install update from vendor's website.

References