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[email protected]CVE-2020-6881

HistoryDec 21, 2020 - 6:15 p.m.

CVE-2020-6881

2020-12-2118:15:16

CWE-346

[email protected]

web.nvd.nist.gov

cve-2020-6881

zte

e8810

e8820

e8822

routers

security vulnerability

mqtt

dos

nvd

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.8%

JSON

ZTE E8810/E8820/E8822 series routers have an MQTT DoS vulnerability, which is caused by the failure of the device to verify the validity of abnormal messages. A remote attacker could connect to the MQTT server and send an MQTT exception message to the specified device, which will cause the device to deny service. This affects:<ZXHN E8810, ZXHN E8820, ZXHN E8822><E8810 V1.0.26, E8810 V2.0.1, E8820 V1.1.3L, E8820 V2.0.13, E8822 V2.0.13>

Affected configurations

NVD

Node

ztezxhn_e8810_firmwareMatch1.0.26

ztezxhn_e8810_firmwareMatch2.0.1

AND

ztezxhn_e8810Match-

Node

ztezxhn_e8820_firmwareMatch1.1.3

ztezxhn_e8820_firmwareMatch2.0.13

AND

ztezxhn_e8820Match-

Node

ztezxhn_e8822_firmwareMatch2.0.13

AND

ztezxhn_e8822Match-

CPENameOperatorVersion
zte:zxhn_e8810_firmwarezte zxhn e8810 firmwareeq1.0.26
zte:zxhn_e8810_firmwarezte zxhn e8810 firmwareeq2.0.1

CPE	Name	Operator	Version
zte:zxhn_e8810_firmware	zte zxhn e8810 firmware	eq	1.0.26
zte:zxhn_e8810_firmware	zte zxhn e8810 firmware	eq	2.0.1

CNA Affected

[
  {
    "product": "<ZXHN E8810, ZXHN E8820, ZXHN E8822>",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "<E8810 V1.0.26, E8810 V2.0.1, E8820 V1.1.3L,  E8820 V2.0.13, E8822 V2.0.13>"
      }
    ]
  }
]

References

support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014202

Social References

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

58.8%

JSON

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