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GovTech CSGCVE-2021-42855

HistoryMar 10, 2022 - 5:44 p.m.

CVE-2021-42855

2022-03-1017:44:07

CWE-732

CWE-284

GovTech CSG

web.nvd.nist.gov

cve-2021-42855

steelcentral appinternals

dsa

api

command execution

configuration file

nvd

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.6

Confidence

High

EPSS

Percentile

12.6%

JSON

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 configurations

Nvd

Node

riverbedsteelcentral_appinternals_dynamic_sampling_agentRange11.0.0–11.8.8

riverbedsteelcentral_appinternals_dynamic_sampling_agentRange12.0.0–12.13.0

riverbedsteelcentral_appinternals_dynamic_sampling_agentMatch10.0.0

VendorProductVersionCPE
riverbedsteelcentral_appinternals_dynamic_sampling_agent*cpe:2.3:a:riverbed:steelcentral_appinternals_dynamic_sampling_agent:*:*:*:*:*:*:*:*
riverbedsteelcentral_appinternals_dynamic_sampling_agent10.0.0cpe:2.3:a:riverbed:steelcentral_appinternals_dynamic_sampling_agent:10.0.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
riverbed	steelcentral_appinternals_dynamic_sampling_agent	*	cpe:2.3:a:riverbed:steelcentral_appinternals_dynamic_sampling_agent::::::::
riverbed	steelcentral_appinternals_dynamic_sampling_agent	10.0.0	cpe:2.3:a:riverbed:steelcentral_appinternals_dynamic_sampling_agent:10.0.0:::::::*

CNA Affected

[
  {
    "product": "SteelCentral AppInternals Dynamic Sampling Agent",
    "vendor": "Aternity",
    "versions": [
      {
        "status": "affected",
        "version": "10.x"
      },
      {
        "lessThan": "12.13.0",
        "status": "affected",
        "version": "12.13.0",
        "versionType": "custom"
      },
      {
        "lessThan": "11.8.8",
        "status": "affected",
        "version": "11.8.8",
        "versionType": "custom"
      }
    ]
  }
]

References

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

Social References

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.6

Confidence

High

EPSS

Percentile

12.6%

JSON

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