Unauthenticated Log Injection in Splunk IT Service Intelligence (ITSI)
Published Aug 30, 2023
8.6
HIGHCVSS 3.1
EPSS 0.25%
Description
In Splunk IT Service Intelligence (ITSI) versions below below 4.13.3, 4.15.3, or 4.17.1, a malicious actor can inject American National Standards Institute (ANSI) escape codes into Splunk ITSI log files that, when a vulnerable terminal application reads them, can run malicious code in the vulnerable application. This attack requires a user to use a terminal application that translates ANSI escape codes to read the malicious log file locally in the vulnerable terminal. The vulnerability also requires additional user interaction to succeed.
The vulnerability does not directly affect Splunk ITSI. The indirect impact on Splunk ITSI can vary significantly depending on the permissions in the vulnerable terminal application, as well as where and how the user reads the malicious log file. For example, users can copy the malicious file from Splunk ITSI and read it on their local machine.
Affected products
-
- Version 4.13StatusaffectedConstraints<4.13.3
- Version 4.15StatusaffectedConstraints<4.15.3
- Version 4.17StatusaffectedConstraints<4.17.1
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Splunk | Splunk ITSI | n/a |
|
- ≥ 4.13.0 · < 4.13.3
- ≥ 4.15.0 · < 4.15.3
- 4.17.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2023-2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (7 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 0.25% (0.00253) | 15.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.23% (0.00233) | 13.93th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00038) | 8.38th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00054) | 24.73th | v3 (v2023.03.01) |
| Jun 10, 2024 | 0.05% (0.00053) | 21.32th | v3 (v2023.03.01) |
| Sep 6, 2023 | 0.05% (0.00053) | 19.32th | v3 (v2023.03.01) |
| Aug 31, 2023 | 0.04% (0.00043) | 6.94th | v3 (v2023.03.01) |
References (1)
- https://advisory.splunk.com/advisories/SVD-2023-0810 Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://advisory.splunk.com/advisories/SVD-2023-0810 | Vendor Advisory |
Change history (0)
No recorded changes yet.