CVE-2023-3724

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-3724", "assignerOrgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27", "state": "PUBLISHED", "assignerShortName": "wolfSSL", "dateReserved": "2023-07-17T21:06:23.613Z", "datePublished": "2023-07-17T21:13:10.623Z", "dateUpdated": "2024-10-29T15:53:43.066Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "wolfSSL", "vendor": "wolfSSL", "versions": [{"lessThanOrEqual": "5.6.0", "status": "affected", "version": "3.14.0", "versionType": "release bundle"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": " Johannes from Sectra Communications and Link\u00f6ping University"}], "datePublic": "2023-06-09T23:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>\n<span style=\"background-color: transparent;\">If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.&nbsp;</span><br></p>"}], "value": "If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.\u00a0\n\n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27", "shortName": "wolfSSL", "dateUpdated": "2023-07-17T21:13:10.623Z"}, "references": [{"name": "github", "tags": ["patch"], "url": "https://github.com/wolfSSL/wolfssl/pull/6412"}, {"name": "website", "url": "https://www.wolfssl.com/docs/security-vulnerabilities/"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "\n\n<span style=\"background-color: transparent;\">Fixed in the following GitHub pull request </span><a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/wolfSSL/wolfssl/pull/6412\"><span style=\"background-color: transparent;\">https://github.com/wolfSSL/wolfssl/pull/6412</span></a>\n\n<br>"}], "value": "\nFixed in the following GitHub pull request https://github.com/wolfSSL/wolfssl/pull/6412 https://github.com/wolfSSL/wolfssl/pull/6412 \n\n\n"}], "source": {"discovery": "EXTERNAL"}, "title": "TLS 1.3 client issue handling malicious server when not including a KSE and PSK extension", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:01:57.504Z"}, "title": "CVE Program Container", "references": [{"name": "github", "tags": ["patch", "x_transferred"], "url": "https://github.com/wolfSSL/wolfssl/pull/6412"}, {"name": "website", "url": "https://www.wolfssl.com/docs/security-vulnerabilities/", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-10-29T15:53:34.846508Z", "id": "CVE-2023-3724", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-29T15:53:43.066Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/wolfSSL/wolfssl/pull/6412", "name": "github", "tags": ["patch", "x_transferred"]}, {"url": "https://www.wolfssl.com/docs/security-vulnerabilities/", "name": "website", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:01:57.504Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-3724", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2024-10-29T15:53:34.846508Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-29T15:53:39.607Z"}}], "cna": {"title": "TLS 1.3 client issue handling malicious server when not including a KSE and PSK extension", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": " Johannes from Sectra Communications and Link\u00f6ping University"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "wolfSSL", "product": "wolfSSL", "versions": [{"status": "affected", "version": "3.14.0", "versionType": "release bundle", "lessThanOrEqual": "5.6.0"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "\nFixed in the following GitHub pull request https://github.com/wolfSSL/wolfssl/pull/6412 https://github.com/wolfSSL/wolfssl/pull/6412 \n\n\n", "supportingMedia": [{"type": "text/html", "value": "\n\n<span style=\"background-color: transparent;\">Fixed in the following GitHub pull request </span><a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/wolfSSL/wolfssl/pull/6412\"><span style=\"background-color: transparent;\">https://github.com/wolfSSL/wolfssl/pull/6412</span></a>\n\n<br>", "base64": false}]}], "datePublic": "2023-06-09T23:00:00.000Z", "references": [{"url": "https://github.com/wolfSSL/wolfssl/pull/6412", "name": "github", "tags": ["patch"]}, {"url": "https://www.wolfssl.com/docs/security-vulnerabilities/", "name": "website"}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}, "descriptions": [{"lang": "en", "value": "If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.\u00a0\n\n\n", "supportingMedia": [{"type": "text/html", "value": "<p>\n<span style=\"background-color: transparent;\">If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.&nbsp;</span><br></p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-20", "description": "CWE-20 Improper Input Validation"}]}], "providerMetadata": {"orgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27", "shortName": "wolfSSL", "dateUpdated": "2023-07-17T21:13:10.623Z"}}}, "cveMetadata": {"cveId": "CVE-2023-3724", "state": "PUBLISHED", "dateUpdated": "2024-10-29T15:53:43.066Z", "dateReserved": "2023-07-17T21:06:23.613Z", "assignerOrgId": "50d2cd11-d01a-48ed-9441-5bfce9d63b27", "datePublished": "2023-07-17T21:13:10.623Z", "assignerShortName": "wolfSSL"}, "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "wolfSSL", "vendor": "wolfSSL", "versions": [{"lessThanOrEqual": "5.6.0", "status": "affected", "version": "3.14.0", "versionType": "release bundle"}]}], "source": "facts@wolfssl.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*", "matchCriteriaId": "F3E8861B-0DD5-4A71-B461-B172B700683F", "versionEndExcluding": "5.6.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used.\u00a0\n\n\n"}], "id": "CVE-2023-3724", "lastModified": "2026-06-17T06:14:42.743", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 6.0, "source": "facts@wolfssl.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-3724", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-10-29T15:53:34.846508Z", "version": "2.0.3"}}]}, "published": "2023-07-17T22:15:09.587", "references": [{"source": "facts@wolfssl.com", "tags": ["Patch"], "url": "https://github.com/wolfSSL/wolfssl/pull/6412"}, {"source": "facts@wolfssl.com", "tags": ["Vendor Advisory"], "url": "https://www.wolfssl.com/docs/security-vulnerabilities/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/wolfSSL/wolfssl/pull/6412"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.wolfssl.com/docs/security-vulnerabilities/"}], "sourceIdentifier": "facts@wolfssl.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "facts@wolfssl.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-295"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}