CVE-2023-52160: fedora Auth Bypass — Fix

Description

The implementation of PEAP in wpa_supplicant through 2.10 allows authentication bypass. For a successful attack, wpa_supplicant must be configured to not verify the network's TLS certificate during Phase 1 authentication, and an eap_peap_decrypt vulnerability can then be abused to skip Phase 2 authentication. The attack vector is sending an EAP-TLV Success packet instead of starting Phase 2. This allows an adversary to impersonate Enterprise Wi-Fi networks.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-287 Improper Authentication

Affected Products

Vendor	Product	Versions
debian	debian_linux	All
fedoraproject	fedora	All
fedoraproject	fedora	All
redhat	enterprise_linux	All
redhat	enterprise_linux	All
w1.fi	wpa_supplicant	< 2.10
google	android	All
google	chrome_os	All
linux	linux_kernel	All

References

Advisories & Patches

https://w1.fi/cgit/hostap/commit/?id=8e6485a1bcb0baffdea9e55255a81270b768439c https://w1.fi/cgit/hostap/commit/?id=8e6485a1bcb0baffdea9e55255a81270b768439c

Other References

Frequently Asked Questions

What is CVE-2023-52160? +

The implementation of PEAP in wpa_supplicant through 2.10 allows authentication bypass. For a successful attack, wpa_supplicant must be configured to not verify the network's TLS certificate during Phase 1 authentication, and an eap_peap_decrypt vulnerability can then be abused to skip Phase 2 authentication. The attack vector is sending an EAP-TLV Success packet instead of starting Phase 2. This allows an adversary to impersonate Enterprise Wi-Fi networks. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2023-52160? +

CVE-2023-52160 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-52160? +

CVE-2023-52160 affects products from debian, fedoraproject, google, linux, redhat, w1.fi, specifically: android, chrome_os, debian_linux, enterprise_linux, fedora, linux_kernel, wpa_supplicant. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-52160? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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