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    CVE-2021-42855

    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.

    Published:Mar 9, 2022
    Last Modified:Nov 21, 2024
    EPS:Mar 9, 2022
    EPSS Score:0.0004
    CVSS Score:7.8

    Affected Products

    Vendor
    Riverbed
    Product
    Steelcentral Appinternals Dynamic Sampling Agent

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs
    CAPEC-122 Privilege Abuse
    CAPEC-127 Directory Indexing
    CAPEC-17 Using Malicious Files
    CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels
    CAPEC-19 Embedding Scripts within Scripts
    CAPEC-206 Signing Malicious Code
    CAPEC-234 Hijacking a privileged process
    CAPEC-441 Malicious Logic Insertion
    CAPEC-478 Modification of Windows Service Configuration
    CAPEC-479 Malicious Root Certificate
    CAPEC-502 Intent Spoof
    CAPEC-503 WebView Exposure
    CAPEC-536 Data Injected During Configuration
    CAPEC-546 Incomplete Data Deletion in a Multi-Tenant Environment
    CAPEC-550 Install New Service
    CAPEC-551 Modify Existing Service
    CAPEC-552 Install Rootkit
    CAPEC-556 Replace File Extension Handlers
    CAPEC-558 Replace Trusted Executable
    CAPEC-562 Modify Shared File
    CAPEC-563 Add Malicious File to Shared Webroot
    CAPEC-564 Run Software at Logon
    CAPEC-578 Disable Security Software
    CAPEC-60 Reusing Session IDs (aka Session Replay)
    CAPEC-61 Session Fixation
    CAPEC-62 Cross Site Request Forgery
    CAPEC-642 Replace Binaries

    Related CVEs

    CVE-2021-42854 (CVSS 9.8) — It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent's (DSA) PluginServlet has director…
    CVE-2021-42856 (CVSS 4.7) — It was discovered that the /DsaDataTest endpoint is susceptible to Cross-site scripting (XSS) attack. It was n…
    CVE-2021-42787 (CVSS 9.4) — It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent's (DSA) AgentConfigurationServlet …
    CVE-2021-42857 (CVSS 5.3) — It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent's (DSA) AgentDaServlet has directo…
    CVE-2021-42786 (CVSS 9.8) — It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent (DSA) has Remote Code Execution vu…
    CVE-2021-42853 (CVSS 9.1) — It was discovered that the SteelCentral AppInternals Dynamic Sampling Agent's (DSA) AgentDiagnosticServlet has…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High