#VU57136 Format string error in Aruba Instant - CVE-2021-37735

Vulnerability identifier: #VU57136

Vulnerability risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-37735

CWE-ID: CWE-134

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 user to perform a denial of service (DoS) attack.

The vulnerability exists due to a format string error in the instant command line interface. A remote privileged user can supply a specially crafted input that contains format string specifiers and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Aruba Instant: 6.5.4.0 - 6.5.4.18, 8.5.0.0 - 8.5.0.10, 8.6.0.0 - 8.6.0.4

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External links
https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-017.txt

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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