Vulnerability · Published Mar 9, 2022 · Assigned by GovTech CSG

CVE-2021-42855Local privilege escalation due to misconfigured write permission on .debug_command.config file

High 7.8

In plain English

A high-severity improper access control in SteelCentral AppInternals Dynamic Sampling Agent from Aternity. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.2%top 87.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Aternity	SteelCentral AppInternals Dynamic Sampling Agent	10.x12.13.0 – before 12.13.011.8.8 – before 11.8.8

Weakness: CWE-284 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://aternity.force.com/customersuccess/s/article/Local-privilege-escalation-due-to-misconfigured-write-permission-on-debug-command-config-file-CVE-2021-42855 x_refsource_CONFIRM