This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6020, R6080, R6120, R6220, R6260, R6700v2, R6800, R6900v2, R7450, JNR3210, WNR2020, Nighthawk AC2100, and Nighthawk AC2400 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. When parsing the funjsq_access_token parameter, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11653.
Published 2021-02-12 00:15:13
Updated 2021-03-26 19:37:26
View at NVD,   CVE.org
Vulnerability category: Execute code

Exploit prediction scoring system (EPSS) score for CVE-2020-27867

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-27867

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.7
HIGH AV:A/AC:L/Au:S/C:C/I:C/A:C
5.1
10.0
NIST
6.8
MEDIUM CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
0.9
5.9
Zero Day Initiative
6.8
MEDIUM CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
0.9
5.9
NIST

CWE ids for CVE-2020-27867

References for CVE-2020-27867

Products affected by CVE-2020-27867

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