Cleartext transmission of sensitive information in Splunk Add-on Builder and Splunk CloudConnect SDK

1) Cleartext transmission of sensitive information

EUVDB-ID: #VU72383

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-22943

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to software can send requests to third-party APIs through the REST API Modular Input using unencrypted HTTP protocol instead of HTTPS. A remote attacker with ability to intercept network traffic can gain access to sensitive data.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Splunk Add-on Builder: 4.1.0 - 4.1.1

Splunk CloudConnect SDK: 3.1.0 - 3.1.2

CPE2.3

• cpe:2.3:a:splunk:splunk_add-on_builder:4.1.0:*:*:*:*:splunk_enterprise:*:*
• cpe:2.3:a:splunk:splunk_add-on_builder:4.1.1:*:*:*:*:splunk_enterprise:*:*
• cpe:2.3:a:splunk:splunk_cloudconnect_sdk:3.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:splunk:splunk_cloudconnect_sdk:3.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:splunk:splunk_cloudconnect_sdk:3.1.2:*:*:*:*:*:*:*

External links

https://advisory.splunk.com/advisories/SVD-2023-0213

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.