SB2023022005 - Multiple vulnerabilities in Splunk Enterprise

Description

This security bulletin contains information about 2 vulnerabilities.

1) Stored cross-site scripting (CVE-ID: CVE-2023-22932)

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:Clear

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

The vulnerability exists due to insufficient sanitization of user-supplied data passed via the error message in a Base64-encoded image. A remote user can permanently inject and execute arbitrary HTML and script code in the victim's browser in the context of the affected application.

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) Input validation error (CVE-ID: CVE-2023-22937)

CWE-ID: CWE-20 - Improper input validation

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

The vulnerability allows a remote user to upload files with unnecessary extensions.

The vulnerability exists due to the application allows users to upload lookup tables with unnecessary filename extensions. A remote user with the "upload_lookup_files" capability can upload files with unexpected extensions, which can have certain impact on the application.

Remediation

Install update from vendor's website.

References

• https://advisory.splunk.com/advisories/SVD-2023-0202
• https://research.splunk.com/application/6e51e403-b3dc-43a1-a682-01f1cf467b91/
• https://advisory.splunk.com/advisories/SVD-2023-0207