Splunk Enterprise: Cleartext Transmission of Sensitive Information
CVE-2024-53246 is a high-severity cleartext transmission of sensitive information vulnerability in Splunk Enterprise from Splunk, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists versions 9.3.2, 9.2.4, 9.1.7 as the first without the flaw, so updating Splunk Enterprise to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.29% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Splunk Enterprise to 9.3.2 or 9.2.4 or 9.1.7, whichever matches your release line, or a later version.
- Update Splunk Cloud Platform to 9.3.2408.101 or 9.2.2406.106 or 9.2.2403.111 or 9.1.2312.206, whichever matches your release line, or a later version.
- Update Splunk to 9.1.7 or 9.2.4 or 9.3.2, whichever matches your release line, or a later version.
- Read the advisory on advisory.splunk.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Splunk | Splunk Enterprise | 9.3 up to, but not including, 9.3.2; 9.2 up to, but not including, 9.2.4; 9.1 up to, but not including, 9.1.7 | 9.3.2, 9.2.4, 9.1.7 |
| Splunk | Splunk Cloud Platform | 9.3.2408 up to, but not including, 9.3.2408.101; 9.2.2406 up to, but not including, 9.2.2406.106; 9.2.2403 up to, but not including, 9.2.2403.111; 9.1.2312 up to, but not including, 9.1.2312.206 | 9.3.2408.101, 9.2.2406.106, 9.2.2403.111, 9.1.2312.206 |
| Splunk | Splunk | 9.1.0 up to, but not including, 9.1.7; 9.2.0 up to, but not including, 9.2.4; 9.3.0 up to, but not including, 9.3.2 | 9.1.7, 9.2.4, 9.3.2 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.3 | Medium | CNA (splunk.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
In Splunk Enterprise versions below 9.3.2, 9.2.4, and 9.1.7 and Splunk Cloud Platform versions below 9.3.2408.101, 9.2.2406.106, 9.2.2403.111, and 9.1.2312.206, an SPL command can potentially disclose sensitive information. The vulnerability requires the exploitation of another vulnerability, such as a Risky Commands Bypass, for successful exploitation.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Cleartext Transmission of Sensitive Information
The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.
How developers prevent this class of flaw
- Before transmitting, encrypt the data using reliable, confidentiality-protecting cryptographic protocols.
- When using web applications with SSL, use SSL for the entire session from login to logout, not just for the initial login page.
- When designing hardware platforms, ensure that approved encryption algorithms (such as those recommended by NIST) protect paths from security critical data to trusted user applications.
More Cleartext Transmission of Sensitive Information vulnerabilities (CWE-319)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Splunk Enterprise
- 9.9 Critical severity
- 9.8 Critical severity
- 8.8 High severity
- 9.9 Critical severity
- 8.8 High severity
- 7.2 High severity
Recent Cleartext Transmission of Sensitive Information vulnerabilities
- 8.1 High severity
- 9.3 Critical severity
- 8.8 High severity
- 7.5 High severity
- 8.7 High severity
- 7.5 High severity
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