CVE-2021-42855: aternity steelcentral appinternals dynamic sampling agent Improper Access Control
Vulnerability summary
CVE-2021-42855 is a high (CVSS 7.8) Improper Access Control vulnerability in aternity steelcentral appinternals dynamic sampling agent. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.2% of scored vulnerabilities.
Timeline
- 09-03-2022PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent (DSA) uses the ".debug_command.config" file to store a json string that contains a list of IDs and pre-configured commands. The config file is subsequently used by the "/api/appInternals/1.0/agent/configuration" API to map the corresponding ID to a command to be executed.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
0.00 pp
From 0.22% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-284Improper Access ControlThe product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
- CWE-732Incorrect Permission Assignment for Critical ResourceThe product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
Affected systems
Aternity1 product
- steelcentral appinternals dynamic sampling agent≥ 10.0, < 11.0 | ≥ 12.13.0, < 12.13.0 | ≥ 11.8.8, < 11.8.8
Riverbed1 product
- steelcentral_appinternals_dynamic_sampling_agent≥ 11.0.0, < 11.8.8 | ≥ 12.0.0, < 12.13.0 | 10.0.0
2 vendors · 2 products