{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-2357", "assignerOrgId": "d42dc95b-23f1-4e06-9076-20753a0fb0df", "state": "PUBLISHED", "assignerShortName": "libreswan", "dateReserved": "2024-03-09T22:24:12.530Z", "datePublished": "2024-03-11T19:39:03.280Z", "dateUpdated": "2024-08-01T19:11:53.507Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d42dc95b-23f1-4e06-9076-20753a0fb0df", "shortName": "libreswan", "dateUpdated": "2024-03-11T19:39:03.280Z"}, "title": "IKEv2 misconfiguration can cause libreswan to abort and restart", "datePublic": "2024-03-11T14:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "description": "IKEv2 misconfiguration can cause libreswan to abort and restart"}]}], "affected": [{"vendor": "The Libreswan Project (www.libreswan.org)", "product": "libreswan", "versions": [{"version": "3.0", "status": "unaffected", "lessThanOrEqual": "4.1", "versionType": "semver"}, {"version": "4.2", "status": "affected", "lessThanOrEqual": "4.12", "versionType": "semver"}, {"version": "5.0", "status": "unaffected"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service."}], "solutions": [{"lang": "en", "value": "This issue is fixed in 4.13, 5.0 and all later versions."}], "workarounds": [{"lang": "en", "value": "As a workaround, one can place an unguessable long random default secret in /etc/ipsec.secrets, for example using the following command:\n\n echo -e \"# CVE-2024-2357 workaround\n: PSK \"$(openssl rand -hex 32)\"\" >> /etc/ipsec.secrets\n\nThis will ensure a PSK secret is always found, but it will always be wrong, and thus authentication will still properly fail."}], "configurations": [{"lang": "en", "value": "The vulnerability can only be triggered for connections with ikev2=yes and authby=secret"}], "timeline": [{"time": "2024-02-08T00:00:00.000Z", "lang": "en", "value": "Issue reported publicly via https://github.com/libreswan/libreswan/issues/1609"}, {"time": "2024-02-14T00:00:00.000Z", "lang": "en", "value": "Workaround posted in the github issue"}, {"time": "2024-02-15T00:00:00.000Z", "lang": "en", "value": "Fix published (as issue was already public via githb issue)"}, {"time": "2024-03-09T00:00:00.000Z", "lang": "en", "value": "Advanced notice given to support customers and distributions"}, {"time": "2024-03-11T00:00:00.000Z", "lang": "en", "value": "CVE-2024-2357 published"}], "credits": [{"lang": "en", "value": "Andrew Vaughn", "type": "finder"}], "references": [{"url": "https://libreswan.org/security/CVE-2024-2357", "name": "CVE-2024-2357", "tags": ["vendor-advisory"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/"}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-2357", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-03-12T16:21:48.798359Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T17:22:15.972Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-01T19:11:53.507Z"}, "title": "CVE Program Container", "references": [{"url": "https://libreswan.org/security/CVE-2024-2357", "name": "CVE-2024-2357", "tags": ["vendor-advisory", "x_transferred"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/", "tags": ["x_transferred"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/", "tags": ["x_transferred"]}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/", "tags": ["x_transferred"]}]}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service."}, {"lang": "es", "value": "Se notific\u00f3 a Libreswan Project sobre un problema que causaba que libreswan se reiniciara en algunos escenarios de retransmisi\u00f3n de IKEv2 cuando una conexi\u00f3n est\u00e1 configurada para usar PreSharedKeys (authby=secret) y la conexi\u00f3n no puede encontrar un secreto configurado coincidente. Cuando dicha conexi\u00f3n se agrega autom\u00e1ticamente al inicio usando la palabra clave auto=, puede causar fallas repetidas que conducen a una denegaci\u00f3n de servicio."}], "id": "CVE-2024-2357", "lastModified": "2024-03-23T03:15:12.690", "metrics": {}, "published": "2024-03-11T20:15:07.867", "references": [{"source": "d42dc95b-23f1-4e06-9076-20753a0fb0df", "url": "https://libreswan.org/security/CVE-2024-2357"}, {"source": "d42dc95b-23f1-4e06-9076-20753a0fb0df", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EJZJYFHKBIJ4ZK5GAWWFFR3AKJS6O5JX/"}, {"source": "d42dc95b-23f1-4e06-9076-20753a0fb0df", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HEM46ALKF7NG6CAUKZ7KQERVOHWQIQKY/"}, {"source": "d42dc95b-23f1-4e06-9076-20753a0fb0df", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TVQ7MZY6LFFGRWAJNTKKN2VSEFS2VPAR/"}], "sourceIdentifier": "d42dc95b-23f1-4e06-9076-20753a0fb0df", "vulnStatus": "Awaiting Analysis"}

{"acknowledgement": "Red Hat would like to thank Andrew Vaughn for reporting this issue.", "affected_release": [{"advisory": "RHSA-2024:1998", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "libreswan-0:4.12-2.el8_9.2", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-04-23T00:00:00Z"}, {"advisory": "RHSA-2024:2082", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "libreswan-0:4.5-1.el8_6.2", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2081", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "libreswan-0:4.9-3.el8_8.1", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2033", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "libreswan-0:4.12-1.el9_3.1", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-24T00:00:00Z"}, {"advisory": "RHSA-2024:2565", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "libreswan-0:4.12-2.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2085", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "libreswan-0:4.9-5.el9_2.1", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-04-30T00:00:00Z"}], "bugzilla": {"description": "libreswan: Missing PreSharedKey for connection can cause crash", "id": "2268952", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2268952"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-400", "details": ["The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup using the auto= keyword, it can cause repeated crashes leading to a Denial of Service.", "A flaw was found in Libreswan. This issue causes Libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret), and the connection cannot find a matching configured secret. When automatically added on startup using the auto= keyword, it can cause repeated crashes, leading to a denial of service."], "mitigation": {"lang": "en:us", "value": "As a workaround to prevent the misconfiguration from causing the crash, place an unguessable long random \"catch-all\" secret in /etc/ipsec.secrets, for example, using the following command:\necho -e \"# CVE-2024-2357 workaround\\n: PSK \\\"$(openssl rand -hex 32)\\\"\" >> /etc/ipsec.secrets\nThis will ensure a PSK secret is always found, but it will always be wrong, and thus authentication will still properly fail."}, "name": "CVE-2024-2357", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "libreswan", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "libreswan", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2024-03-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-2357\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-2357\nhttps://github.com/libreswan/libreswan/commit/cb9e1047d33fde695d63a95854c2bc2470a476c8.patch\nhttps://libreswan.org/security/CVE-2024-2357"], "statement": "Libreswan may restart repeatedly under certain IKEv2 retransmission scenarios when using PreSharedKeys (authby=secret) if the connection cannot find a matching configured secret. If such a connection is added automatically on startup using the auto= keyword, it can lead to repeated crashes, causing a denial of service. The vulnerability arises when IKEv2 fails to find its PreSharedKey for the AUTH payload in the IKE_AUTH Exchange, resulting in assertion failure and daemon crashes. This vulnerability is triggered by local misconfiguration, and there is no known exploitation by external peers.", "threat_severity": "Moderate", "upstream_fix": "libreswan 4.13, libreswan 5.0"}