Weakness in PKEX Implementation in hostapd by the Linux Foundation
CVE-2022-37660

6.5MEDIUM

Key Information:

Vendor

Linux Foundation

Status
hostapd
Vendor
CVE Published:
11 February 2025

What is CVE-2022-37660?

In hostapd 2.10 and earlier, a flaw exists in the PKEX code that remains active post successful PKEX association, potentially allowing attackers to compromise future associations. If an attacker previously bootstrapped public keys with an entity using PKEX, they can exploit this weakness by passively observing public keys. By re-using the encrypting element Qi and deducting it from the captured message M, an attacker can compute the ephemeral key X, instrumental in undermining the integrity of the PKEX association.

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References

https://w1.fi/cgit/hostap/commit/?id=15af83cf1846870873a0...
https://link.springer.com/article/10.1007/s10207-025-00988-3

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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