Vulnerability identifier: #VU86768
Vulnerability risk: Medium
CVSSv3.1: 5.5 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-287
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
wpa_supplicant
Server applications /
Encryption software
Vendor: Jouni Malinen
Description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in the PEAP implementation. A remote attacker can bypass authentication process by sending an EAP-TLV Success packet instead of starting Phase 2.
Successful exploitation of the vulnerability requires that wpa_supplicant is configured to not verify the network's TLS certificate during Phase 1 authentication.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
wpa_supplicant: 0.2 - 13.2
External links
http://w1.fi/cgit/hostap/commit/?id=8e6485a1bcb0baffdea9e55255a81270b768439c
http://www.top10vpn.com/research/wifi-vulnerabilities/
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.