{"containers":{"cna":{"affected":[{"platforms":["PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200"],"product":"PAN-OS","vendor":"Palo Alto Networks","versions":[{"lessThan":"8.1.18","status":"affected","version":"8.1","versionType":"custom"},{"lessThan":"9.0.12","status":"affected","version":"9.0","versionType":"custom"},{"lessThan":"9.1.5","status":"affected","version":"9.1","versionType":"custom"}]},{"product":"PAN-OS","vendor":"Palo Alto Networks","versions":[{"status":"unaffected","version":"10.0.*"},{"lessThan":"8.1*","status":"unaffected","version":"8.1.18","versionType":"custom"},{"lessThan":"9.0*","status":"unaffected","version":"9.0.12","versionType":"custom"},{"lessThan":"9.1*","status":"unaffected","version":"9.1.5","versionType":"custom"}]}],"credits":[{"lang":"en","value":"This issue was found by a customer of Palo Alto Networks during a security review."}],"datePublic":"2021-01-13T00:00:00.000Z","descriptions":[{"lang":"en","value":"Padding bytes in Ethernet packets on PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200 Series, and PA-7000 Series firewalls are not cleared before the data frame is created. This leaks a small amount of random information from the firewall memory into the Ethernet packets. An attacker on the same Ethernet subnet as the PAN-OS firewall is able to collect potentially sensitive information from these packets. This issue is also known as Etherleak and is detected by security scanners as CVE-2003-0001. This issue impacts: PAN-OS 8.1 version earlier than PAN-OS 8.1.18; PAN-OS 9.0 versions earlier than PAN-OS 9.0.12; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5."}],"exploits":[{"lang":"en","value":"Palo Alto Networks is not aware of any malicious exploitation of this issue."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","description":"CWE-200 Information Exposure","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2021-01-13T18:10:13.000Z","orgId":"d6c1279f-00f6-4ef7-9217-f89ffe703ec0","shortName":"palo_alto"},"references":[{"tags":["x_refsource_MISC"],"url":"https://security.paloaltonetworks.com/CVE-2021-3031"}],"solutions":[{"lang":"en","value":"This issue is fixed in PAN-OS 8.1.18, PAN-OS 9.0.12, PAN-OS 9.1.5, and all later PAN-OS versions."}],"source":{"defect":["PAN-124681"],"discovery":"USER"},"timeline":[{"lang":"en","time":"2021-01-13T00:00:00.000Z","value":"Initial publication"}],"title":"PAN-OS: Information exposure in Ethernet data frame construction (Etherleak)","workarounds":[{"lang":"en","value":"There is no workaround to prevent the information leak in the Ethernet packets; however, restricting access to the networks mitigates the risk of this issue."}],"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"psirt@paloaltonetworks.com","DATE_PUBLIC":"2021-01-13T17:00:00.000Z","ID":"CVE-2021-3031","STATE":"PUBLIC","TITLE":"PAN-OS: Information exposure in Ethernet data frame construction (Etherleak)"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"PAN-OS","version":{"version_data":[{"platform":"PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200","version_affected":"<","version_name":"8.1","version_value":"8.1.18"},{"platform":"PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200","version_affected":"<","version_name":"9.0","version_value":"9.0.12"},{"platform":"PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200","version_affected":"<","version_name":"9.1","version_value":"9.1.5"},{"version_affected":"!>=","version_name":"8.1","version_value":"8.1.18"},{"version_affected":"!>=","version_name":"9.0","version_value":"9.0.12"},{"version_affected":"!>=","version_name":"9.1","version_value":"9.1.5"},{"version_affected":"!","version_name":"10.0","version_value":"10.0.*"}]}}]},"vendor_name":"Palo Alto Networks"}]}},"credit":[{"lang":"eng","value":"This issue was found by a customer of Palo Alto Networks during a security review."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Padding bytes in Ethernet packets on PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200 Series, and PA-7000 Series firewalls are not cleared before the data frame is created. This leaks a small amount of random information from the firewall memory into the Ethernet packets. An attacker on the same Ethernet subnet as the PAN-OS firewall is able to collect potentially sensitive information from these packets. This issue is also known as Etherleak and is detected by security scanners as CVE-2003-0001. 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