SB2023060729 - Multiple vulnerabilities in Splunk Enterprise and Splunk Cloud Platform

Description

This security bulletin contains information about 2 vulnerabilities.

1) Stored cross-site scripting (CVE-ID: CVE-2023-22933)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "module" Tag in the View. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

2) Cross-site request forgery (CVE-ID: CVE-2023-22942)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in the "ssg/kvstore_client" REST Endpoint. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Remediation

Install update from vendor's website.

References

• https://research.splunk.com/application/9ac2bfea-a234-4a18-9d37-6d747e85c2e4
• https://advisory.splunk.com/advisories/SVD-2023-0203
• https://research.splunk.com/application/4742d5f7-ce00-45ce-9c79-5e98b43b4410/
• https://advisory.splunk.com/advisories/SVD-2023-0212