#VU109316 Cryptographic Issues in Qualcomm products - CVE-2020-3702

Vulnerability identifier: #VU109316

Vulnerability risk: Medium

CVSSv4.0: 2.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-3702

CWE-ID: CWE-310

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
QCN550x
Mobile applications / Mobile firmware & hardware
QCA955x
Mobile applications / Mobile firmware & hardware
QCA956x
Mobile applications / Mobile firmware & hardware
AR938x
Mobile applications / Mobile firmware & hardware
AR958x
Mobile applications / Mobile firmware & hardware
AR934x
Mobile applications / Mobile firmware & hardware
AR9331
Mobile applications / Mobile firmware & hardware
AR9287
Mobile applications / Mobile firmware & hardware
QCA4531
Mobile applications / Mobile firmware & hardware
QCA9565
Mobile applications / Mobile firmware & hardware
QCA9462
Mobile applications / Mobile firmware & hardware
QCA9485
Mobile applications / Mobile firmware & hardware
QCA9531
Hardware solutions / Firmware

Vendor: Qualcomm

Description

The vulnerability allows a remote attacker to gain access top sensitive information.

The vulnerability exists due to improper input validation in WIFI driver(Krook). A remote attacker can temporary disable WPA2 or the WPA/WPA2 mixed-mode encryption and intercept traffic in clear text.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

QCN550x: All versions

QCA9531: All versions

QCA955x: All versions

QCA956x: All versions

AR938x: All versions

AR958x: All versions

AR934x: All versions

AR9331: All versions

AR9287: All versions

QCA4531: All versions

QCA9565: All versions

QCA9462: All versions

QCA9485: All versions

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External links
https://www.qualcomm.com/company/product-security/bulletins/august-2020-security-bulletin

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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.