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TenableCVE-2020-5759

HistoryJul 17, 2020 - 9:15 p.m.

CVE-2020-5759

2020-07-1721:15:13

CWE-78

tenable

web.nvd.nist.gov

cve-2020-5759

grandstream

ucm6200

firmware

ssh

command injection

os vulnerability

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.6

Confidence

High

EPSS

0.003

Percentile

65.6%

JSON

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.

Affected configurations

Nvd

Node

grandstreamucm6202_firmwareRange≤1.0.20.23

AND

grandstreamucm6202Match-

Node

grandstreamucm6204_firmwareRange≤1.0.20.23

AND

grandstreamucm6204Match-

Node

grandstreamucm6208_firmwareRange≤1.0.20.23

AND

grandstreamucm6208Match-

VendorProductVersionCPE
grandstreamucm6202_firmware*cpe:2.3:o:grandstream:ucm6202_firmware:*:*:*:*:*:*:*:*
grandstreamucm6202-cpe:2.3:h:grandstream:ucm6202:-:*:*:*:*:*:*:*
grandstreamucm6204_firmware*cpe:2.3:o:grandstream:ucm6204_firmware:*:*:*:*:*:*:*:*
grandstreamucm6204-cpe:2.3:h:grandstream:ucm6204:-:*:*:*:*:*:*:*
grandstreamucm6208_firmware*cpe:2.3:o:grandstream:ucm6208_firmware:*:*:*:*:*:*:*:*
grandstreamucm6208-cpe:2.3:h:grandstream:ucm6208:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
grandstream	ucm6202_firmware	*	cpe:2.3:o:grandstream:ucm6202_firmware::::::::
grandstream	ucm6202	-	cpe:2.3:h:grandstream:ucm6202:-:::::::*
grandstream	ucm6204_firmware	*	cpe:2.3:o:grandstream:ucm6204_firmware::::::::
grandstream	ucm6204	-	cpe:2.3:h:grandstream:ucm6204:-:::::::*
grandstream	ucm6208_firmware	*	cpe:2.3:o:grandstream:ucm6208_firmware::::::::
grandstream	ucm6208	-	cpe:2.3:h:grandstream:ucm6208:-:::::::*

CNA Affected

[
  {
    "product": "Grandstream UCM6200 Series",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Versions 1.0.20.23 and below"
      }
    ]
  }
]

References

www.tenable.com/cve/CVE-2020-5759

www.tenable.com/security/research/tra-2020-42

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.6

Confidence

High

EPSS

0.003

Percentile

65.6%

JSON

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