SB2022072905 - Multiple vulnerabilities in IBM i 

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Main Vulnerability Database SB2022072905

SB2022072905 - Multiple vulnerabilities in IBM i

Published: July 29, 2022

Security Bulletin ID SB2022072905
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Improper Authentication (CVE-ID: CVE-2022-31813)

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in mod_proxy implementation, where the web server may not send the X-Forwarded-* headers to the origin server based on client side Connection header hop-by-hop mechanism. A remote attacker can bypass IP based authentication on the origin server/application and gain access to otherwise restricted functionality.


2) Out-of-bounds read (CVE-ID: CVE-2022-28614)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the ap_rwrite() function. A remote attacker can with the ability to force the server to reflect a very large input using ap_rwrite() or ap_rputs() (such as with mod_luas r:puts() function) can trigger an out-of-bounds read error and read read unintended memory on the system.


3) Out-of-bounds read (CVE-ID: CVE-2022-28615)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the ap_strcmp_match() function when processing an extremely large input buffer. A remote attacker can send a specially crafted HTTP request to the web server, trigger an out-of-bounds read error and read contents of memory on the system.

Note, the code distributed with the Apache HTTP Server cannot be coerced into such a call. The vulnerability can affect third-party modules or lua scripts that use ap_strcmp_match().


Remediation

Install update from vendor's website.

References