CVE-2020-15593 Detail
Current 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.
Analysis 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.
Severity
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-732 | Incorrect Permission Assignment for Critical Resource | NIST |
Change History
1 change records found show changes
Initial Analysis 7/29/2020 2:18:46 PM
| Action | Type | Old Value | New Value |
|---|---|---|---|
| Added | CPE Configuration |
AND
OR
*cpe:2.3:a:riverbed:steelcentral_aternity_agent:11.0.0.120:*:*:*:*:*:*:*
OR
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
|
|
| Added | CVSS V2 |
NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) |
|
| Added | CVSS V3.1 |
NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
|
| Added | CWE |
NIST CWE-732 |
|
| Changed | Reference Type |
https://aternity.force.com/customersuccess/s/article/Recorder-tool-security-notification-mitigation-steps-for-On-Prem No Types Assigned |
https://aternity.force.com/customersuccess/s/article/Recorder-tool-security-notification-mitigation-steps-for-On-Prem Permissions Required, Third Party Advisory |
| Changed | Reference Type |
https://sec-consult.com/en/blog/advisories/privilege-escalation-vulnerability-in-steelcentral-aternity-agent-cve-2020-15592-cve-2020-15593/ No Types Assigned |
https://sec-consult.com/en/blog/advisories/privilege-escalation-vulnerability-in-steelcentral-aternity-agent-cve-2020-15592-cve-2020-15593/ Third Party Advisory |
Quick Info
CVE Dictionary Entry:
CVE-2020-15593
NVD Published Date:
07/27/2020
NVD Last Modified:
07/29/2020
Source:
MITRE