Information disclosure in Splunk Secure Gateway App



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-20231
CWE-ID CWE-532
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Splunk Enterprise
Server applications / IDS/IPS systems, Firewalls and proxy servers

Splunk Secure Gateway
Server applications / Remote management servers, RDP, SSH

Vendor Splunk Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Inclusion of Sensitive Information in Log Files

EUVDB-ID: #VU106068

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-20231

CWE-ID: CWE-532 - Information Exposure Through Log Files

Exploit availability: No

Description

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

The vulnerability exists due to the Splunk Secure Gateway exposes user session and authorization tokens in clear text in the splunk_secure_gateway.log file when it calls the /services/ssg/secrets REST endpoint. A remote unprivileged user can gain access to authorization tokens and use them to compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Splunk Enterprise: 9.0.9 - 9.4.0

Splunk Secure Gateway: before 3.7.23

CPE2.3 External links

https://advisory.splunk.com/advisories/SVD-2025-0302


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



###SIDEBAR###