#VU53166 Input validation error in Juniper Networks, Inc. products - CVE-2020-26143

Vulnerability identifier: #VU53166

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-26143

CWE-ID: CWE-20

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Mist Access Point
Hardware solutions / Routers & switches, VoIP, GSM, etc
AP21
Hardware solutions / Routers & switches, VoIP, GSM, etc
AP41
Hardware solutions / Routers & switches, VoIP, GSM, etc
AP61
Hardware solutions / Routers & switches, VoIP, GSM, etc
AP43
Hardware solutions / Routers & switches, VoIP, GSM, etc
AP63
Hardware solutions / Routers & switches, VoIP, GSM, etc
AP12
Hardware solutions / Routers & switches, VoIP, GSM, etc
AP32
Hardware solutions / Routers & switches, VoIP, GSM, etc
AP33
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the WEP, WPA, WPA2, and WPA3 implementations accept fragmented plaintext frames in a protected Wi-Fi network. A remote attacker on the local network can inject arbitrary data frames independent of the network configuration.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mist Access Point: 0.5 - 0.9

AP21: All versions

AP41: All versions

AP61: All versions

AP43: All versions

AP63: All versions

AP12: All versions

AP32: All versions

AP33: All versions

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External links
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA11170&cat=SIRT_1&actp=LIST

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.