{"containers": {"cna": {"affected": [{"product": "PAN-OS", "vendor": "Palo Alto Networks", "versions": [{"status": "unaffected", "version": "10.2.*"}, {"changes": [{"at": "8.1.22", "status": "unaffected"}], "lessThan": "8.1.22", "status": "affected", "version": "8.1", "versionType": "custom"}, {"changes": [{"at": "9.1.13", "status": "unaffected"}], "lessThan": "9.1.13", "status": "affected", "version": "9.1", "versionType": "custom"}, {"changes": [{"at": "10.1.5", "status": "unaffected"}], "lessThan": "10.1.5", "status": "affected", "version": "10.1", "versionType": "custom"}, {"changes": [{"at": "10.0.10", "status": "unaffected"}], "lessThan": "10.0.10", "status": "affected", "version": "10.0", "versionType": "custom"}, {"changes": [{"at": "9.0.16", "status": "unaffected"}], "lessThan": "9.0.16", "status": "affected", "version": "9.0", "versionType": "custom"}]}, {"product": "Prisma Access", "vendor": "Palo Alto Networks", "versions": [{"status": "unaffected", "version": "3.0 Preferred, Innovation"}, {"status": "unaffected", "version": "2.2 Preferred"}, {"status": "unaffected", "version": "2.1 Preferred, Innovation"}]}], "configurations": [{"lang": "en", "value": "This issue is applicable only to PAN-OS hardware and virtual firewalls with the DNS proxy feature enabled. You can verify whether DNS proxy is enabled by selecting 'Network > DNS Proxy\u2019 from the web interface."}], "credits": [{"lang": "en", "value": "This issue was found by Nicholas Newsom of Palo Alto Networks during internal security review."}], "datePublic": "2022-04-13T00:00:00", "descriptions": [{"lang": "en", "value": "An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically crafted traffic to the firewall that causes the service to restart unexpectedly. Repeated attempts to send this request result in denial-of-service to all PAN-OS services by restarting the device in maintenance mode. This issue does not impact Panorama appliances and Prisma Access customers. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.22; PAN-OS 9.0 versions earlier than PAN-OS 9.0.16; PAN-OS 9.1 versions earlier than PAN-OS 9.1.13; PAN-OS 10.0 versions earlier than PAN-OS 10.0.10; PAN-OS 10.1 versions earlier than PAN-OS 10.1.5. 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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*", "matchCriteriaId": "AC3526AD-4E39-4D8D-9265-1EB1948081D5", "versionEndExcluding": "8.1.22", "versionStartIncluding": "8.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*", "matchCriteriaId": "0E3757E3-17C0-4D42-A31A-78F40A774F41", "versionEndExcluding": "9.0.16", "versionStartIncluding": "9.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*", "matchCriteriaId": "9AB9A952-7A40-40C9-A8B4-2227F18555B4", "versionEndExcluding": "9.1.13", "versionStartIncluding": "9.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*", "matchCriteriaId": "9B2FCE56-9375-4F9A-8E4F-1573B64665CA", "versionEndExcluding": "10.0.10", "versionStartIncluding": "10.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*", "matchCriteriaId": "7EDCD5AD-A5F9-41CE-8D23-53C2457FFFD9", "versionEndExcluding": "10.1.5", "versionStartIncluding": "10.1.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically crafted traffic to the firewall that causes the service to restart unexpectedly. Repeated attempts to send this request result in denial-of-service to all PAN-OS services by restarting the device in maintenance mode. This issue does not impact Panorama appliances and Prisma Access customers. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.22; PAN-OS 9.0 versions earlier than PAN-OS 9.0.16; PAN-OS 9.1 versions earlier than PAN-OS 9.1.13; PAN-OS 10.0 versions earlier than PAN-OS 10.0.10; PAN-OS 10.1 versions earlier than PAN-OS 10.1.5. This issue does not impact PAN-OS 10.2."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de manejo inapropiado de condiciones excepcionales en la funci\u00f3n de proxy DNS del software PAN-OS de Palo Alto Networks que permite a un atacante de tipo meddler-in-the-middle (MITM) enviar tr\u00e1fico espec\u00edficamente dise\u00f1ado al firewall que causa un reinicio no esperado del servicio. 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