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[email protected]CVE-2020-5757

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

CVE-2020-5757

2020-07-1721:15:13

CWE-78

[email protected]

web.nvd.nist.gov

cve-2020-5757

grandstream

ucm6200

firmware

command injection

http

remote attacker

10 High

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

9.8 High

CVSS3

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

9.6 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

65.6%

JSON

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via HTTP. An authenticated remote attacker can bypass command injection mitigations and execute commands as the root user by sending a crafted HTTP POST to the UCM’s “New” HTTPS API.

Affected configurations

NVD

Node

grandstreamucm6202Match-

AND

grandstreamucm6202_firmwareRange≤1.0.20.23

Node

grandstreamucm6204Match-

AND

grandstreamucm6204_firmwareRange≤1.0.20.23

Node

grandstreamucm6208Match-

AND

grandstreamucm6208_firmwareRange≤1.0.20.23

CPENameOperatorVersion
grandstream:ucm6202_firmwaregrandstream ucm6202 firmwarele1.0.20.23

CPE	Name	Operator	Version
grandstream:ucm6202_firmware	grandstream ucm6202 firmware	le	1.0.20.23

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-2020-5757

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

10 High

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

9.8 High

CVSS3

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

9.6 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

65.6%

JSON

Related for CVE-2020-5757

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