#VU83245 Stored cross-site scripting in Splunk Enterprise - CVE-2023-46213

Vulnerability identifier: #VU83245

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-46213

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Splunk Enterprise
Server applications / IDS/IPS systems, Firewalls and proxy servers

Vendor: Splunk Inc.

Description

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 within the "Show syntax highlighted" feature when displaying log file entries. A remote attacker can execute arbitrary HTML and script code in user's browser in context of vulnerable website when the log file is viewed.

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Splunk Enterprise: 5.0.0 - 5.0.19, 6.0.0 - 6.0.15, 6.1.0 - 6.1.14, 6.2.0 - 6.2.14, 6.3.0 - 6.3.12, 6.4.0 - 6.4.9, 6.5.0 - 6.5.6, 6.6 - 6.6.4, 7.0.0 - 7.0.1, 7.1.1, 7.2.0 - 7.2.10, 7.3.0 - 7.3.9, 8.0.0 - 8.0.10, 8.1.0 - 8.1.14, 8.2.0 - 8.2.12, 9.0.0 - 9.0.6, 9.1.0 - 9.1.1

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External links
https://advisory.splunk.com/advisories/SVD-2023-1103

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.