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CVE-2019-9494

CVE-2019-9494 — The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side-channel attacks

The implementations of SAE in hostapd and wpa_supplicant are vulnerable to side channel attacks as a result of observable timing differences and cache access patterns. An attacker may be able to gain leaked information from a side channel attack that can be used for full password recovery. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.

Published Updated Sources: cvelistV5, certcc

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.

Exploitation

Unreported

no source claims exploitation

EPSS

4%

chance of exploitation in 30 days

Affects

wi fi alliance

2 products listed

CVSS base

Unscored

no source published a base score

Affected scope

The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.

Vendors (1)

wi fi alliance

Products (2)

hostapd with sae supportwpa supplicant with sae support

Weakness & attack patterns

  • CWE-208
  • CWE-524

Attack patterns reported against this CVE. The ATT&CK techniques below are inferred from its weakness class.

  • T1592.002Gather Victim Host Information: Software
  • T1082System Information Discovery
  • T1005Data from Local System

References

9 on the record

Elsewhere on this site

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.