CVE-2018-5241

{"containers": {"cna": {"affected": [{"product": "Advanced Secure Gateway (ASG)", "vendor": "Symantec Corporation", "versions": [{"status": "affected", "version": "6.6"}, {"status": "affected", "version": "6.7"}]}, {"product": "ProxySG", "vendor": "Symantec Corporation", "versions": [{"status": "affected", "version": "6.5"}, {"status": "affected", "version": "6.6"}, {"status": "affected", "version": "6.7"}]}], "datePublic": "2018-05-25T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles."}], "problemTypes": [{"descriptions": [{"description": "Authentication bypass", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-05-30T09:57:01.000Z", "orgId": "80d3bcb6-88de-48c2-a47e-aebf795f19b5", "shortName": "symantec"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"}, {"name": "1040993", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1040993"}, {"name": "104282", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/104282"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secure@symantec.com", "DATE_PUBLIC": "2018-05-25T00:00:00", "ID": "CVE-2018-5241", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Advanced Secure Gateway (ASG)", "version": {"version_data": [{"version_value": "6.6"}, {"version_value": "6.7"}]}}, {"product_name": "ProxySG", "version": {"version_data": [{"version_value": "6.5"}, {"version_value": "6.6"}, {"version_value": "6.7"}]}}]}, "vendor_name": "Symantec Corporation"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Authentication bypass"}]}]}, "references": {"reference_data": [{"name": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167", "refsource": "CONFIRM", "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"}, {"name": "1040993", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1040993"}, {"name": "104282", "refsource": "BID", "url": "http://www.securityfocus.com/bid/104282"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T05:33:42.763Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"}, {"name": "1040993", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1040993"}, {"name": "104282", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/104282"}]}]}, "cveMetadata": {"assignerOrgId": "80d3bcb6-88de-48c2-a47e-aebf795f19b5", "assignerShortName": "symantec", "cveId": "CVE-2018-5241", "datePublished": "2018-05-29T13:00:00.000Z", "dateReserved": "2018-01-05T00:00:00.000Z", "dateUpdated": "2024-09-17T03:28:24.667Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Advanced Secure Gateway (ASG)", "vendor": "Symantec Corporation", "versions": [{"status": "affected", "version": "6.6"}, {"status": "affected", "version": "6.7"}]}, {"product": "ProxySG", "vendor": "Symantec Corporation", "versions": [{"status": "affected", "version": "6.5"}, {"status": "affected", "version": "6.6"}, {"status": "affected", "version": "6.7"}]}], "source": "secure@symantec.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:broadcom:advanced_secure_gateway:6.6:*:*:*:*:*:*:*", "matchCriteriaId": "A541B285-4265-4AED-80FC-AE02C1372645", "vulnerable": true}, {"criteria": "cpe:2.3:a:broadcom:advanced_secure_gateway:6.7:*:*:*:*:*:*:*", "matchCriteriaId": "3C1055B8-A926-4831-A8EC-E1A2C9DFFFDF", "vulnerable": true}, {"criteria": "cpe:2.3:a:broadcom:symantec_proxysg:6.5:*:*:*:*:*:*:*", "matchCriteriaId": "C90E531A-A9AF-47F4-BDC5-E40AEE3CCFD5", "vulnerable": true}, {"criteria": "cpe:2.3:a:broadcom:symantec_proxysg:6.6:*:*:*:*:*:*:*", "matchCriteriaId": "004F99F2-E750-4FC5-A2A6-65FD1C918676", "vulnerable": true}, {"criteria": "cpe:2.3:a:broadcom:symantec_proxysg:6.7:*:*:*:*:*:*:*", "matchCriteriaId": "91A561A9-EA6E-461B-89FA-FA60F40C14B9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Symantec Advanced Secure Gateway (ASG) 6.6 and 6.7, and ProxySG 6.5, 6.6, and 6.7 are susceptible to a SAML authentication bypass vulnerability. The products can be configured with a SAML authentication realm to authenticate network users in intercepted proxy traffic. When parsing SAML responses, ASG and ProxySG incorrectly handle XML nodes with comments. A remote attacker can modify a valid SAML response without invalidating its cryptographic signature. This may allow the attacker to bypass user authentication security controls in ASG and ProxySG. This vulnerability only affects authentication of network users in intercepted traffic. It does not affect administrator user authentication for the ASG and ProxySG management consoles."}, {"lang": "es", "value": "Symantec Advanced Secure Gateway (ASG) 6.6 y 6.7 y ProxySG 6.5, 6.6 y 6.7 son susceptibles a una vulnerabilidad de omisi\u00f3n de autenticaci\u00f3n SAML. Los productos pueden configurarse con un realm de autenticaci\u00f3n SAML para autenticar a usuarios de red en tr\u00e1fico de proxy interceptado. Al parsear respuestas SAML, ASG y ProxySG gestionan incorrectamente los nodos XML con comentarios. Un atacante remoto puede modificar una respuesta SAML v\u00e1lida sin invalidar su firma criptogr\u00e1fica. Esto podr\u00eda permitir que el atacante omita los controles de seguridad de autenticaci\u00f3n en ASG y ProxySG. Esta vulnerabilidad solo afecta a la autenticaci\u00f3n de usuarios de red en el tr\u00e1fico interceptado. No afecta a la autenticaci\u00f3n de usuario administrador en las consolas de gesti\u00f3n de ASG y ProxySG."}], "id": "CVE-2018-5241", "lastModified": "2026-06-17T01:59:54.100", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-05-29T13:29:00.617", "references": [{"source": "secure@symantec.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104282"}, {"source": "secure@symantec.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040993"}, {"source": "secure@symantec.com", "tags": ["Vendor Advisory"], "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104282"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040993"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.symantec.com/security-center/network-protection-security-advisories/SA167"}], "sourceIdentifier": "secure@symantec.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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