SB2023071310 - Multiple vulnerabilities in IBM eDiscovery Manager
Published: July 13, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Code Injection (CVE-ID: CVE-2020-17530)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation when processing certain tag's attributes. The application performs double evaluation of the code if a developer applied forced OGNL evaluation by using the %{...} syntax. A remote attacker can send a specially crafted request to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Code Injection (CVE-ID: CVE-2019-0230)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The Apache Struts frameworks, when forced, performs double evaluation
of attributes' values assigned to certain tags attributes such as id
so it is possible to pass in a value that will be evaluated again when a
tag's attributes will be rendered. With a carefully crafted request,
this can lead to Remote Code Execution (RCE).
The problem only applies when forcing OGNL evaluation inside a Struts tag attribute, when the expression to evaluate references raw, unvalidated input that an attacker is able to directly modify by crafting a corresponding request.
Example:
<s:url var="url" namespace="/employee" action="list"/><s:a id="%{skillName}" href="%{url}">List available Employees</s:a>
If an attacker is able to modify the skillName attribute in a request such that a raw OGNL expression gets passed to the skillName property without further validation, the provided OGNL expression contained in the skillName attribute gets evaluated when the tag is rendered as a result of the request.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Improper access control (CVE-ID: CVE-2019-0233)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due stack-accessible values (e.g. Action properties) of type java.io.File and java.nio.File as well as other classes from these standard library packages are not properly protected by the framework. When a file upload is performed to
an Action that exposes the file with a getter, an attacker may
manipulate the request such that the working copy of the uploaded file
is set to read-only. As a result, subsequent actions on the file will
fail with an error. It might also be possible to set the Servlet
container's temp directory to read only, such that subsequent upload
actions will fail.
4) Code Injection (CVE-ID: CVE-2021-31805)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation caused by incomplete fix for #VU48815 (CVE-220-17530). Still some of the tag's attributes could perform a double evaluation if a developer applied forced OGNL evaluation by using the %{...} syntax. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.