CVE-2023-22943: splunk add-on_builder Failing Open
CVSS: 5.3v3.1MediumModified
Published 14-02-2023Last modified 28-02-2025
Vulnerability summary
CVE-2023-22943 is a medium (CVSS 5.3) Failing Open vulnerability in splunk add-on_builder. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 22.9% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (NVD)EPSS score
0.32%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 14-02-2023PublishedVulnerability first disclosed.
- 28-02-2025Last modifiedVulnerability information updated.
Description
In Splunk Add-on Builder (AoB) versions below 4.1.2 and the Splunk CloudConnect SDK versions below 3.1.3, requests to third-party APIs through the REST API Modular Input incorrectly revert to using HTTP to connect after a failure to connect over HTTPS occurs.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 5.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NSources2 sources · 4.8–5.3
- CVE.orgCNA4.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NDiffers
EPSS trend
Probability
0.32%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
0.00 pp
From 0.32% on 20-09-2026
20-09-202620-10-2026
EPSS score0.32%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-636Not Failing Securely ('Failing Open')When the product encounters an error condition or failure, its design requires it to fall back to a state that is less secure than other options that are available, such as selecting the weakest encryption algorithm or using the most permissive access control restrictions.
- CWE-295Improper Certificate ValidationThe product does not validate, or incorrectly validates, a certificate.
Affected systems
Splunk4 products
- add-on_builder≥ 4.1.0, < 4.1.2
- cloudconnect_software_development_kit≥ 3.1.0, < 3.1.3
- splunk add-on builder≥ 4.1, < 4.1.2
- splunk cloudconnect sdk≥ 3.1, < 3.1.3
1 vendor · 4 products