CVE-2022-41412 – A Closer Look at the perfSONAR v4.4.5 Vulnerability, including Exploit Details and Remediation Steps

CVE-2022-41412 is a recently discovered vulnerability in the perfSONAR Network Measurement Toolkit (versions 4.4.5 and prior). This vulnerability lies within the graphData.cgi component of perfSONAR, allowing potential attackers to access sensitive data and execute Server-Side Request Forgery (SSRF) attacks. In this article, we will dive deep into the vulnerability and provide details on its exploit, links to original references, and the necessary remediation steps to patch the vulnerability.

Vulnerability Details

The vulnerability (CVE-2022-41412) can be exploited by an attacker when the graphData.cgi component in perfSONAR v4.4.5 and earlier versions fails to adequately validate input parameters. This lack of proper input validation allows an attacker to manipulate the parameters to gain access to sensitive data or execute SSRF attacks against internal services or resources.

Here's a code snippet illustrating the improper input validation in the graphData.cgi component

# vulnerable code snippet from graphData.cgi
my $timeframe = param('timeframe') || "86400";
my $dataSource = param('dataSource') || "bwctl";
my $port = param('port');
my $ipVersion = param('ip_version') || "4";

The above snippet shows that input parameters like 'timeframe', 'dataSource', 'port', and 'ip_version' are directly taken from user input without any validation. As a result, an attacker can craft a malicious request to exploit the vulnerability.

Exploit Details

An attacker can exploit this vulnerability by sending a specially crafted HTTP request to the vulnerable graphData.cgi component. The malicious request will contain manipulated input parameters, which, when processed by the vulnerable component, will lead to unauthorized access to sensitive data or SSRF attacks.

A sample exploit using curl might look like this

curl -k 'https://vulnerable_host/cgi-bin/graphData.cgi?dataSource=xyz&timeframe=86400&port=INTERNAL_PORT&ip_version=INTERNAL_IP'; -o output.txt

In this example, the attacker replaces 'INTERNAL_PORT' and 'INTERNAL_IP' with values representing internal resources or services they want to target.

For more information on CVE-2022-41412, you can refer to the following resources

1. Official CVE details: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-41412
2. NIST National Vulnerability Database (NVD): https://nvd.nist.gov/vuln/detail/CVE-2022-41412

Remediation Steps

If you are using perfSONAR v4.4.5 or earlier versions, it is recommended to take immediate action to patch the vulnerability:

1. Update to the latest version of perfSONAR: The developers of perfSONAR have already released an updated version (v4.4.6) addressing the vulnerability. For more details, please visit their official website: https://www.perfsonar.net/about/announcements/v446/
2. Apply proper input validation: As a preventive measure, developers should ensure that they apply proper validation and sanitization techniques when handling user input. This will reduce the likelihood of similar vulnerabilities in the future.

Conclusion

CVE-2022-41412 is a significant vulnerability in the perfSONAR Network Measurement Toolkit (v4.4.5 and prior) that can lead to data leaks and SSRF attacks. By understanding the exploit details and taking necessary remediation steps, administrators and developers can protect their installations and maintain the security of their networks.

Timeline

Published on: 11/30/2022 05:15:00 UTC
Last modified on: 12/02/2022 14:47:00 UTC