CVE-2022-38145 is a cross-site scripting (XSS) vulnerability in the popular web content management system - Silverstripe. The vulnerability resides in the silverstripe/framework package (versions 4. to 4.11). XSS vulnerabilities enable attackers to inject malicious scripts into the web pages viewed by other users. In this long-read post, we'll take a closer look at the exploit, provide code snippets for demonstration, and link out to original references.
Exploit Details
The CVE-2022-38145 vulnerability allows remote attackers to add a JavaScript payload to a page's meta description. When a user views the versioned history compare view, the payload gets executed. This particular issue is 1 out of 3 XSS vulnerabilities found in the Silverstripe framework.
Wait for users to visit the versioned history compare view
3. The malicious JavaScript gets executed in the browser context, leading to various consequences, including session hijacking, account takeover, or private data leakage.
Code Snippet
Let's take a look at an example JavaScript payload that an attacker could inject into the page's meta description:
<meta name="description" content="<script>/* MALICIOUS JAVASCRIPT CODE */</script>">
Here, the /* MALICIOUS JAVASCRIPT CODE */ can be replaced with an actual malicious script. Note that an attacker might use obfuscation to make the script payload more difficult to detect.
The following are some important links associated with CVE-2022-38145 vulnerability
1. CVE Entry - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-38145
2. NVD Details - https://nvd.nist.gov/vuln/detail/CVE-2022-38145
3. Silverstripe Framework GitHub Repository - https://github.com/silverstripe/silverstripe-framework
Mitigation
The vulnerability has been fixed in Silverstripe framework 4.11. To mitigate this vulnerability, website administrators should immediately update their Silverstripe installations to the latest 4.11 version or apply available patches provided by Silverstripe.
Conclusion
The CVE-2022-38145 vulnerability is a serious cross-site scripting issue that affects the widely used Silverstripe web content management system. Web administrators need to take immediate action to update their Silverstripe installations to prevent potential attackers from exploiting this vulnerability. By following best practices and applying updated security patches, web developers can better protect their web applications and user data.
Timeline
Published on: 11/23/2022 02:15:00 UTC
Last modified on: 11/30/2022 14:24:00 UTC