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CVE-2020-15593

7.8 · HIGH

SteelCentral Aternity Agent 11.0.0.120 on Windows mishandles IPC.

Published Jul 27, 2020EPSS 0.44%

Overview

CVE-2020-15593 is a high-severity vulnerability. It was published on July 27, 2020 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

SteelCentral Aternity Agent 11.0.0.120 on Windows mishandles IPC. It uses an executable running as a high privileged Windows service to perform administrative tasks and collect data from other processes. It distributes functionality among different processes and uses IPC (Inter-Process Communication) primitives to enable the processes to cooperate. Any user in the system is allowed to access the interprocess communication channel AternityAgentAssistantIpc, retrieve a serialized object and call object methods remotely. Among others, the methods allow any user to: (1) Create and/or overwrite arbitrary XML files across the system; (2) Create arbitrary directories across the system; and (3) Load arbitrary plugins (i.e., C# assemblies) from the "%PROGRAMFILES(X86)/Aternity Information Systems/Assistant/plugins” directory and execute code contained in them.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refaternity.force.com/customersuccess/s/article/Recorder-tool-security-notification-mitigation-steps-for-On-PremRefsec-consult.com/en/blog/advisories/privilege-escalation-vulnerability-in-steelcentral-aternity-agent-cve-2020-15592-cve-2020-15593/Refaternity.force.com/customersuccess/s/article/Recorder-tool-security-notification-mitigation-steps-for-On-PremRefsec-consult.com/en/blog/advisories/privilege-escalation-vulnerability-in-steelcentral-aternity-agent-cve-2020-15592-cve-2020-15593/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-15593?

CVE-2020-15593 is a high-severity vulnerability. It was published on July 27, 2020 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2020-15593?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-15593?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-15593?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-15593 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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