cve-2024-41996
Vulnerability from cvelistv5
Published
2024-08-26 00:00
Modified
2024-08-26 15:17
Severity ?
EPSS score ?
Summary
Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers (from the client side) to trigger unnecessarily expensive server-side DHE modular-exponentiation calculations. The client may cause asymmetric resource consumption. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE and validate the order of the public key.
References
{ "containers": { "adp": [ { "affected": [ { "cpes": [ "cpe:2.3:a:diffie-hellman_key_exchange_project:diffie-hellman_key_exchange:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "product": "diffie-hellman_key_exchange", "vendor": "diffie-hellman_key_exchange_project", "versions": [ { "lessThanOrEqual": "*", "status": "affected", "version": "0", "versionType": "custom" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } }, { "other": { "content": { "id": "CVE-2024-41996", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2024-08-26T15:15:18.339789Z", "version": "2.0.3" }, "type": "ssvc" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-295", "description": "CWE-295 Improper Certificate Validation", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-08-26T15:17:29.404Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers (from the client side) to trigger unnecessarily expensive server-side DHE modular-exponentiation calculations. The client may cause asymmetric resource consumption. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE and validate the order of the public key." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2024-08-26T05:59:37.163238", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "url": "https://gist.github.com/c0r0n3r/abccc14d4d96c0442f3a77fa5ca255d1" }, { "url": "https://dheatattack.gitlab.io/details/" }, { "url": "https://dheatattack.gitlab.io/faq/" } ] } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2024-41996", "datePublished": "2024-08-26T00:00:00", "dateReserved": "2024-07-26T00:00:00", "dateUpdated": "2024-08-26T15:17:29.404Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-41996\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2024-08-26T06:15:04.603\",\"lastModified\":\"2024-08-26T16:35:11.247\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers (from the client side) to trigger unnecessarily expensive server-side DHE modular-exponentiation calculations. The client may cause asymmetric resource consumption. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE and validate the order of the public key.\"},{\"lang\":\"es\",\"value\":\"Validar el orden de las claves p\u00fablicas en el Protocolo de acuerdo de claves Diffie-Hellman, cuando se utiliza un valor primario seguro aprobado, permite a atacantes remotos (desde el lado del cliente) activar c\u00e1lculos de exponenciaci\u00f3n modular DHE del lado del servidor innecesariamente costosos. El cliente puede provocar un consumo asim\u00e9trico de recursos. El escenario de ataque b\u00e1sico es que el cliente debe afirmar que solo puede comunicarse con DHE y el servidor debe configurarse para permitir DHE y validar el orden de la clave p\u00fablica.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]}],\"references\":[{\"url\":\"https://dheatattack.gitlab.io/details/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://dheatattack.gitlab.io/faq/\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://gist.github.com/c0r0n3r/abccc14d4d96c0442f3a77fa5ca255d1\",\"source\":\"cve@mitre.org\"}]}}", "vulnrichment": { "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-41996\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-08-26T15:15:18.339789Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:diffie-hellman_key_exchange_project:diffie-hellman_key_exchange:-:*:*:*:*:*:*:*\"], \"vendor\": \"diffie-hellman_key_exchange_project\", \"product\": \"diffie-hellman_key_exchange\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"*\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-295\", \"description\": \"CWE-295 Improper Certificate Validation\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-08-26T15:17:17.331Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://gist.github.com/c0r0n3r/abccc14d4d96c0442f3a77fa5ca255d1\"}, {\"url\": \"https://dheatattack.gitlab.io/details/\"}, {\"url\": \"https://dheatattack.gitlab.io/faq/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Validating the order of the public keys in the Diffie-Hellman Key Agreement Protocol, when an approved safe prime is used, allows remote attackers (from the client side) to trigger unnecessarily expensive server-side DHE modular-exponentiation calculations. The client may cause asymmetric resource consumption. The basic attack scenario is that the client must claim that it can only communicate with DHE, and the server must be configured to allow DHE and validate the order of the public key.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2024-08-26T05:59:37.163238\"}}}", "cveMetadata": "{\"cveId\": \"CVE-2024-41996\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-26T15:17:29.404Z\", \"dateReserved\": \"2024-07-26T00:00:00\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2024-08-26T00:00:00\", \"assignerShortName\": \"mitre\"}", "dataType": "CVE_RECORD", "dataVersion": "5.1" } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.