#VU53253 Input validation error in Aruba Instant - CVE-2021-25143

Vulnerability identifier: #VU53253

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-25143

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Aruba Instant
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Aruba Networks

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the PAPI Protocol. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Aruba Instant: 8.3.0.12, 8.5.0.9, 8.6.0.4

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External links
https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-007.txt

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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 Internet.

Is there known malware, which exploits this vulnerability?

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