Several vulnerabilities have been discovered in Splunk Enterprise Security and Splunk User Behavior Analytics (UBA), which existed in several third-party packages.
The third-party package includes Splunk, which includes babel/traverse, handsontable, semver, loader-utils, json5, socket.io-parser, protobuf, and Guava.
However, Splunk has acted swiftly upon these vulnerabilities and patched them accordingly. The severity for these vulnerabilities ranges between 7.1 (High) and 9.8 (Critical).
Compounding the problem are zero-day vulnerabilities like the MOVEit SQLi, Zimbra XSS, and 300+ such vulnerabilities that get discovered each month. Delays in fixing these vulnerabilities lead to compliance issues, these delay can be minimized with a unique feature on AppTrana that helps you to get “Zero vulnerability report” within 72 hours.
Technical Analysis
According to the reports shared with Cyber Security News, there were 13 vulnerabilities patched as per Splunk’s security advisories.
protobuf package had the highest number of vulnerabilities at 4 compared to other packages.
The CVEs were CVE-2015-5237 (8.8), CVE-2022-3171 (7.5), CVE-2022-3509 (7.5), CVE-2022-3510 (7.5). With 3 vulnerabilities, loader-utils became the second package with the highest number of vulnerabilities with one critical vulnerability.
The CVEs of loader-utils package vulnerabilities were CVE-2022-37599 (7.5), CVE-2022-37603 (7.5), and CVE-2022-37601 (9.8).
Other third-party packages like babel/traverse, handsontable, semver, json5, socket.io-parser, and Guava had one high severity vulnerability each. The CVEs were as follows.
- babel/traverse (CVE-2023-45133 – 8.8)
- handsontable (CVE-2021-23446 – 7.5)
- semver (CVE-2022-25883 – 7.5)
- json5 (CVE-2022-46175 – 8.8)
- socket.io-parser (CVE-2023-32695 – 7.5)
- Guava (CVE-2023-2976 – 7.1)
Affected Products and Fixed in Version
| Product | Version | Component | Affected Version | Fix Version |
| Splunk Enterprise Security (ES) | 7.3 | – | – | 7.3.0 |
| Splunk Enterprise Security (ES) | 7.2 | – | – | 7.2.0 |
| Splunk Enterprise Security (ES) | 7.1 | – | Below 7.1.2 | 7.1.2 |
| Splunk User Behavior Analytics (UBA) | – | – | Below 5.3.0 | 5.3.0 |
| Splunk User Behavior Analytics (UBA) | – | – | Below 5.2.1 | 5.2.1 |
It is recommended for users of these products to upgrade to the mentioned versions or higher to prevent these vulnerabilities from getting exploited by threat actors.
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