CVE-2020-5756

Grandstream GWN7000 firmware version 1.0.9.4 and below allows authenticated remote users to modify the system's crontab via undocumented API. An attacker can use this functionality to execute arbitrary OS commands on the router.

CVSS v3.0 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.tenable.com/security/research/tra-2020-41	Not Applicable
https://www.tenable.com/cve/CVE-2020-5756	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:grandstream:gwn7000_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:grandstream:gwn7000:-:*:*:*:*:*:*:*

Information

Published : 2020-07-17 14:15

Updated : 2020-07-22 13:43

NVD link : CVE-2020-5756

Mitre link : CVE-2020-5756

JSON object : View

CWE

CWE-78

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

Products Affected

grandstream

gwn7000
gwn7000_firmware

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8.8 /10