Description
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: 2021-02-11
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2020-20360 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.
History

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Subscriptions

Netgear Ac2100 Ac2100 Firmware Ac2400 Ac2400 Firmware Ac2600 Ac2600 Firmware R6020 R6020 Firmware R6080 R6080 Firmware R6120 R6120 Firmware R6220 R6220 Firmware R6230 R6230 Firmware R6260 R6260 Firmware R6330 R6330 Firmware R6350 R6350 Firmware R6700 R6700 Firmware R6800 R6800 Firmware R6850 R6850 Firmware R6900 R6900 Firmware R7200 R7200 Firmware R7350 R7350 Firmware R7400 R7400 Firmware R7450 R7450 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: zdi

Published:

Updated: 2024-08-04T16:25:43.694Z

Reserved: 2020-10-27T00:00:00.000Z

Link: CVE-2020-27867

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-02-12T00:15:12.970

Modified: 2024-11-21T05:21:57.877

Link: CVE-2020-27867

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses