CVE-2019-9498 The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-Commit

2019-04-1713:31:08

CWE-346

certcc

www.cve.org

AI Score

7.9

Confidence

High

EPSS

0.007

Percentile

80.9%

JSON

The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.

CNA Affected

[
  {
    "product": "hostapd with EAP-pwd support",
    "vendor": "Wi-Fi Alliance",
    "versions": [
      {
        "lessThanOrEqual": "2.7",
        "status": "affected",
        "version": "2.7",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "wpa_supplicant with EAP-pwd support",
    "vendor": "Wi-Fi Alliance",
    "versions": [
      {
        "lessThanOrEqual": "2.7",
        "status": "affected",
        "version": "2.7",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "hostapd with SAE support",
    "vendor": "Wi-Fi Alliance",
    "versions": [
      {
        "lessThanOrEqual": "2.4",
        "status": "affected",
        "version": "2.4",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "wpa_supplicant with SAE support",
    "vendor": "Wi-Fi Alliance",
    "versions": [
      {
        "lessThanOrEqual": "2.4",
        "status": "affected",
        "version": "2.4",
        "versionType": "custom"
      }
    ]
  }
]