SB2022010601 - IBM WebSphere Application Server update for Apache Log4j

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Main Vulnerability Database SB2022010601

SB2022010601 - IBM WebSphere Application Server update for Apache Log4j

Published: January 6, 2022 Updated: February 9, 2023

Security Bulletin ID SB2022010601
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Code Injection (CVE-ID: CVE-2021-44832)

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation. A remote user with permission to modify the logging configuration file can construct a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI which can execute remote code.


2) Infinite loop (CVE-ID: CVE-2021-45105)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within the StrSubstitutor class. A remote attacker can pass specially crafted input to the application, consume all available system resources and cause denial of service conditions.

Payload example: ${${::-${::-$${::-j}}}}


Remediation

Install update from vendor's website.

References