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This vulnerability may allow an attacker to complete EAP-PWD authentication without knowing the password. However, unless the crypto library does not implement additional checks for the EC point, the attacker will not be able to derive the session key or complete the key exchange. 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."}, {"lang": "es", "value": "Las implementaciones de EAP-PWD en hostapd en EAP Server y wpa_supplicant en EAP Peer, no comprueban los valores escalares y de elementos en EAP-pwd-Commit. Esta vulnerabilidad puede permitir que un atacante complete la identificaci\u00f3n EAP-PWD sin conocer la contrase\u00f1a. Sin embargo, a menos que la biblioteca criptogr\u00e1fica no implemente comprobaciones adicionales para el punto EC, el atacante no podr\u00e1 derivar la clave de sesi\u00f3n o completar el intercambio de claves. 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 afectaos."}], "id": "CVE-2019-9497", "lastModified": "2024-11-21T04:51:44.057", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-04-17T14:29:03.963", "references": [{"source": "cret@cert.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html"}, {"source": "cret@cert.org", "url": "http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html"}, {"source": "cret@cert.org", "url": "https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html"}, {"source": "cret@cert.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/56OBBOJJSKRTDGEXZOVFSTP4HDSDBLAE/"}, {"source": "cret@cert.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVMJOFEYBGXZLFF5IOLW67SSOPKFEJP3/"}, {"source": "cret@cert.org", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TDOZGR3T7FVO5JSZWK2QPR7AOFIEJTIZ/"}, {"source": "cret@cert.org", "url": "https://seclists.org/bugtraq/2019/May/40"}, {"source": "cret@cert.org", "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc"}, {"source": "cret@cert.org", "tags": ["Patch", "Vendor Advisory"], "url": "https://w1.fi/security/2019-4/"}, {"source": "cret@cert.org", "url": "https://www.synology.com/security/advisory/Synology_SA_19_16"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00021.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "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", "url": "https://seclists.org/bugtraq/2019/May/40"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "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", "url": "https://www.synology.com/security/advisory/Synology_SA_19_16"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-301"}], "source": "cret@cert.org", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Eyal Ronen (Tel Aviv University & KU Leuven) and Mathy Vanhoef (NYUAD) for reporting this issue.", "bugzilla": {"description": "wpa_supplicant: EAP-pwd server not checking for reflection attack", "id": "1699164", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1699164"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-287", "details": ["The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit. This vulnerability may allow an attacker to complete EAP-PWD authentication without knowing the password. However, unless the crypto library does not implement additional checks for the EC point, the attacker will not be able to derive the session key or complete the key exchange. 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."], "name": "CVE-2019-9497", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "wpa_supplicant", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:rhev_hypervisor:4", "fix_state": "Not affected", "package_name": "redhat-virtualization-host", "product_name": "Red Hat Virtualization 4"}, {"cpe": "cpe:/o:redhat:rhev_hypervisor:4", "fix_state": "Not affected", "package_name": "rhvm-appliance", "product_name": "Red Hat Virtualization 4"}], "public_date": "2019-04-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-9497\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-9497\nhttps://w1.fi/security/2019-4/eap-pwd-missing-commit-validation.txt\nhttps://www.kb.cert.org/vuls/id/871675/"], "statement": "This issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 5, 6 as they did not include support for EAP-pwd.\nThis issue did not affect the versions of wpa_supplicant as shipped with Red Hat Enterprise Linux 7 as they are not compiled with EAP-pwd enabled. In particular, the CONFIG_EAP_PWD=y option is not set at compile time.", "threat_severity": "Moderate"}