What is CVE-2021-42787?

CVE-2021-42787 is a critical-severity vulnerability in Aternity Steelcentral Appinternals Dynamic Sampling Agent, classified under Improper Input Validation. CVSS score: 9.4/10. Published 2022-03-10.

How severe is CVE-2021-42787?

Critical severity. CVSS v3 base score is 9.4 out of 10.

Is CVE-2021-42787 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Aternity Steelcentral Appinternals Dynamic Sampling Agent

CVE-2021-42787

It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent's (DSA) AgentConfigurationServlet has directory traversal vulnerabilities at the "/api/appInternals/1.0/agent/configuration" API. The affected endpoint does not have any input validation of the user's input that allows a malicious payload to be injected.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.013 (67.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H.

Affected products

Aternity Steelcentral Appinternals Dynamic Sampling Agent — versions 10.x, 12.13.0, 11.8.8
Riverbed Steelcentral_appinternals_dynamic_sampling_agent — versions 10.0.0

Weakness classification (CWE)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve_disclosure@tech.gov.sg (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-42787?: CVE-2021-42787 is a critical-severity vulnerability in Aternity Steelcentral Appinternals Dynamic Sampling Agent, classified under Improper Input Validation. CVSS score: 9.4/10. Published 2022-03-10.
How severe is CVE-2021-42787?: Critical severity. CVSS v3 base score is 9.4 out of 10.
Is CVE-2021-42787 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.