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CVE-2019-9498 (GCVE-0-2019-9498)

Vulnerability from cvelistv5 – Published: 2019-04-17 13:31 – Updated: 2024-08-04 21:54
VLAI
Title
The implementations of EAP-PWD in hostapd EAP Server do not validate the scalar and element values in EAP-pwd-Commit
Summary
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.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-346 - Origin Validation Error
Assigner
References
URL Tags
https://w1.fi/security/2019-4/ x_refsource_CONFIRM
https://www.synology.com/security/advisory/Synolo… x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://security.FreeBSD.org/advisories/FreeBSD-S… vendor-advisoryx_refsource_FREEBSD
https://seclists.org/bugtraq/2019/May/40 mailing-listx_refsource_BUGTRAQ
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
Impacted products
Show details on NVD website
To clipboard 

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          "value": "Las implementaciones del componente EAP-PWD en hostapd en EAP Server, cuando se construyen contra una biblioteca criptogr\u00e1fica sin comprobaci\u00f3n expl\u00edcita en elementos importados, no comprueban los valores escalares y de elementos en EAP-pwd-Commit. Un atacante puede usar valores escalares y de elementos no v\u00e1lidos para completar la autenticaci\u00f3n, conseguir clave de sesi\u00f3n y acceso a la red sin necesidad de conocer la contrase\u00f1a. Tanto hostapd con soporte SAE como wpa_supplicant con soporte SAE anterior e incluyendo la versi\u00f3n 2.4 son  impactados. Tanto hostapd con soporte EAP-pwd como wpa_supplicant con soporte EAP-pwd anterior y con la versi\u00f3n 2.7 est\u00e1n afectados."
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            "value": "Las implementaciones del componente EAP-PWD en hostapd en EAP Server, cuando se construyen contra una biblioteca criptogr\u00e1fica sin comprobaci\u00f3n expl\u00edcita en elementos importados, no comprueban los valores escalares y de elementos en EAP-pwd-Commit. Un atacante puede usar valores escalares y de elementos no v\u00e1lidos para completar la autenticaci\u00f3n, conseguir clave de sesi\u00f3n y acceso a la red sin necesidad de conocer la contrase\u00f1a. Tanto hostapd con soporte SAE como wpa_supplicant con soporte SAE anterior e incluyendo la versi\u00f3n 2.4 son  impactados. Tanto hostapd con soporte EAP-pwd como wpa_supplicant con soporte EAP-pwd anterior y con la versi\u00f3n 2.7 est\u00e1n afectados."
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            "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://seclists.org/bugtraq/2019/May/40"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://w1.fi/security/2019-4/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.synology.com/security/advisory/Synology_SA_19_16"
          }
        ],
        "sourceIdentifier": "cret@cert.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-346"
              }
            ],
            "source": "cret@cert.org",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-287"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2025-11-21T16:48:18+00:00",
      "cve": "CVE-2019-9498",
      "id": "CVE-2019-9498",
      "initial_release_date": "2019-04-10T00:00:00+00:00",
      "product_status:known_not_affected": "11",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "wpa_supplicant: EAP-pwd server missing commit validation for scalar/element",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-9498.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-31T02:42:01Z",
      "cve": "CVE-2019-9498",
      "id": "CVE-2019-9498",
      "initial_release_date": "2023-02-15T04:14:39Z",
      "product_status:known_affected": "2",
      "product_status:known_not_affected": "12",
      "product_status:recommended": "94",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-9498",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-9498.json",
      "version": "25"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.