CVE-2020-5759

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via SSH. An authenticated remote attacker can execute commands as the root user by issuing a specially crafted "unset" command.

CVSS v3 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.tenable.com/security/research/tra-2020-42	Not Applicable
https://www.tenable.com/cve/CVE-2020-5759	Third Party Advisory
https://www.tenable.com/security/research/tra-2020-42	Not Applicable

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:grandstream:ucm6202_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:ucm6202:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:grandstream:ucm6204_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:ucm6204:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:grandstream:ucm6208_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:ucm6208:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:34

Type	Values Removed	Values Added
References	~~() https://www.tenable.com/security/research/tra-2020-42 - Not Applicable~~	() https://www.tenable.com/security/research/tra-2020-42 - Not Applicable

Information

Published : 2020-07-17 21:15

Updated : 2024-11-21 05:34

NVD link : CVE-2020-5759

Mitre link : CVE-2020-5759

CVE.ORG link : CVE-2020-5759

JSON object : View

Products Affected

grandstream

ucm6204
ucm6208_firmware
ucm6204_firmware
ucm6202_firmware
ucm6208
ucm6202

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

{"id": "CVE-2020-5759", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 10.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2020-07-17T21:15:13.937", "references": [{"url": "https://www.tenable.com/security/research/tra-2020-42", "tags": ["Not Applicable"], "source": "vulnreport@tenable.com"}, {"url": "https://www.tenable.com/cve/CVE-2020-5759", "tags": ["Third Party Advisory"], "source": "nvd@nist.gov"}, {"url": "https://www.tenable.com/security/research/tra-2020-42", "tags": ["Not Applicable"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "vulnreport@tenable.com", "description": [{"lang": "en", "value": "CWE-78"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via SSH. An authenticated remote attacker can execute commands as the root user by issuing a specially crafted \"unset\" command."}, {"lang": "es", "value": "Grandstream serie UCM6200 versiones de firmware 1.0.20.23 y posterior, es vulnerable a una inyecci\u00f3n de comandos del Sistema Operativo por medio de SSH. Un atacante autenticado remoto puede ejecutar comandos como usuario root al emitir un comando \"unset\" especialmente dise\u00f1ado"}], "lastModified": "2024-11-21T05:34:33.120", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:grandstream:ucm6202_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "685CBD60-7C46-4DF8-A25C-8003D02B0175", "versionEndIncluding": "1.0.20.23"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:grandstream:ucm6202:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9864BD0F-BE9C-4F72-AB57-77036699029B"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:grandstream:ucm6204_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A180364-ABDF-49EE-80CB-31DA799DDA1C", "versionEndIncluding": "1.0.20.23"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:grandstream:ucm6204:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B5A26ABB-8BED-4E61-91AA-ABF1B90CBD81"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:grandstream:ucm6208_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "50793718-3D0C-449C-940E-3157259B9F06", "versionEndIncluding": "1.0.20.23"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:grandstream:ucm6208:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "EA744718-8862-4579-B9CF-E1E8137A02E6"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "vulnreport@tenable.com"}

9.8 /10