CVE-2020-6881

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>

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1014202	Vendor Advisory

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Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:zte:zxhn_e8810_firmware:1.0.26:::::::*
	cpe:2.3:o:zte:zxhn_e8810_firmware:2.0.1:::::::*

cpe:2.3:h:zte:zxhn_e8810:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

OR	cpe:2.3:o:zte:zxhn_e8820_firmware:1.1.3:::::::*
	cpe:2.3:o:zte:zxhn_e8820_firmware:2.0.13:::::::*

cpe:2.3:h:zte:zxhn_e8820:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:o:zte:zxhn_e8822_firmware:2.0.13:*:*:*:*:*:*:*

cpe:2.3:h:zte:zxhn_e8822:-:*:*:*:*:*:*:*

Information

Published : 2020-12-21 10:15

Updated : 2020-12-22 12:32

NVD link : CVE-2020-6881

Mitre link : CVE-2020-6881

JSON object : View

CWE

CWE-346

Origin Validation Error

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Products Affected

zte

zxhn_e8822
zxhn_e8822_firmware
zxhn_e8820_firmware
zxhn_e8810_firmware
zxhn_e8810
zxhn_e8820

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