cve-2021-3055
Vulnerability from cvelistv5
Published
2021-09-08 17:10
Modified
2024-09-17 00:30
Severity ?
EPSS score ?
Summary
An improper restriction of XML external entity (XXE) reference vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator to read any arbitrary file from the file system and send a specifically crafted request to the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.6. This issue does not affect Prisma Access.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Palo Alto Networks | PAN-OS |
Version: 9.0 < 9.0.14 Version: 9.1 < 9.1.10 Version: 10.0 < 10.0.6 Version: 8.1 < 8.1.20 |
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Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.6. This issue does not affect Prisma Access.", }, ], exploits: [ { lang: "en", value: "Palo Alto Networks is not aware of any malicious attempts to exploit this vulnerability.", }, ], metrics: [ { cvssV3_1: { attackComplexity: "LOW", attackVector: "NETWORK", availabilityImpact: "HIGH", baseScore: 6.5, baseSeverity: "MEDIUM", confidentialityImpact: "HIGH", integrityImpact: "NONE", privilegesRequired: "HIGH", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H", version: "3.1", }, }, ], problemTypes: [ { descriptions: [ { cweId: "CWE-611", description: "CWE-611 Improper Restriction of XML External Entity Reference ('XXE')", lang: "en", type: "CWE", }, ], }, ], providerMetadata: { dateUpdated: "2021-09-08T17:10:22", orgId: "d6c1279f-00f6-4ef7-9217-f89ffe703ec0", shortName: "palo_alto", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://security.paloaltonetworks.com/CVE-2021-3055", }, ], solutions: [ { lang: "en", value: "This issue is fixed in PAN-OS 8.1.20, PAN-OS 9.0.14, PAN-OS 9.1.10, PAN-OS 10.0.6, and all later PAN-OS versions.", }, ], source: { defect: [ "PAN-166241", ], discovery: "EXTERNAL", }, timeline: [ { lang: "en", time: "2021-09-08T00:00:00", value: "Initial publication", }, ], title: "PAN-OS: XML External Entity (XXE) Reference Vulnerability in the PAN-OS Web Interface", workarounds: [ { lang: "en", value: "This issue requires the attacker to have authenticated access to the PAN-OS web interface. You can mitigate the impact of this issue by following best practices for securing the PAN-OS web interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation at https://docs.paloaltonetworks.com/best-practices.", }, ], x_generator: { engine: "Vulnogram 0.0.9", }, x_legacyV4Record: { CVE_data_meta: { ASSIGNER: "psirt@paloaltonetworks.com", DATE_PUBLIC: "2021-09-08T16:00:00.000Z", ID: "CVE-2021-3055", STATE: "PUBLIC", TITLE: "PAN-OS: XML External Entity (XXE) Reference Vulnerability in the PAN-OS Web Interface", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "PAN-OS", version: { version_data: [ { version_affected: "<", version_name: "9.0", version_value: "9.0.14", }, { version_affected: "<", version_name: "9.1", version_value: "9.1.10", }, { version_affected: "<", version_name: "10.0", version_value: "10.0.6", }, { version_affected: "<", version_name: "8.1", version_value: "8.1.20", }, { version_affected: "!>=", version_name: "9.0", version_value: "9.0.14", }, { version_affected: "!>=", version_name: "9.1", version_value: "9.1.10", }, { version_affected: "!>=", version_name: "10.0", version_value: "10.0.6", }, { version_affected: "!>=", version_name: "8.1", version_value: "8.1.20", }, { version_affected: "!", version_name: "10.1", version_value: "10.1.*", }, ], }, }, ], }, 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: "An improper restriction of XML external entity (XXE) reference vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator to read any arbitrary file from the file system and send a specifically crafted request to the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.6. This issue does not affect Prisma Access.", }, ], }, exploit: [ { lang: "en", value: "Palo Alto Networks is not aware of any malicious attempts to exploit this vulnerability.", }, ], generator: { engine: "Vulnogram 0.0.9", }, impact: { cvss: { attackComplexity: "LOW", attackVector: "NETWORK", availabilityImpact: "HIGH", baseScore: 6.5, baseSeverity: "MEDIUM", confidentialityImpact: "HIGH", integrityImpact: "NONE", privilegesRequired: "HIGH", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H", version: "3.1", }, }, problemtype: { problemtype_data: [ { description: [ { lang: "eng", value: "CWE-611 Improper Restriction of XML External Entity Reference ('XXE')", }, ], }, ], }, references: { reference_data: [ { name: "https://security.paloaltonetworks.com/CVE-2021-3055", refsource: "MISC", url: "https://security.paloaltonetworks.com/CVE-2021-3055", }, ], }, solution: [ { lang: "en", value: "This issue is fixed in PAN-OS 8.1.20, PAN-OS 9.0.14, PAN-OS 9.1.10, PAN-OS 10.0.6, and all later PAN-OS versions.", }, ], source: { defect: [ "PAN-166241", ], discovery: "EXTERNAL", }, timeline: [ { lang: "en", time: "2021-09-08T00:00:00", value: "Initial publication", }, ], work_around: [ { lang: "en", value: "This issue requires the attacker to have authenticated access to the PAN-OS web interface. You can mitigate the impact of this issue by following best practices for securing the PAN-OS web interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation at https://docs.paloaltonetworks.com/best-practices.", }, ], x_advisoryEoL: false, x_affectedList: [ "PAN-OS 10.0.5", "PAN-OS 10.0.4", "PAN-OS 10.0.3", "PAN-OS 10.0.2", "PAN-OS 10.0.1", "PAN-OS 10.0.0", "PAN-OS 10.0", "PAN-OS 9.1.9", "PAN-OS 9.1.8", "PAN-OS 9.1.7", "PAN-OS 9.1.6", "PAN-OS 9.1.5", "PAN-OS 9.1.4", "PAN-OS 9.1.3-h1", "PAN-OS 9.1.3", "PAN-OS 9.1.2-h1", "PAN-OS 9.1.2", "PAN-OS 9.1.1", "PAN-OS 9.1.0-h3", "PAN-OS 9.1.0-h2", "PAN-OS 9.1.0-h1", "PAN-OS 9.1.0", "PAN-OS 9.1", "PAN-OS 9.0.13", "PAN-OS 9.0.12", "PAN-OS 9.0.11", "PAN-OS 9.0.10", "PAN-OS 9.0.9-h1", "PAN-OS 9.0.9", "PAN-OS 9.0.8", "PAN-OS 9.0.7", "PAN-OS 9.0.6", "PAN-OS 9.0.5", "PAN-OS 9.0.4", "PAN-OS 9.0.3-h3", "PAN-OS 9.0.3-h2", "PAN-OS 9.0.3-h1", "PAN-OS 9.0.3", "PAN-OS 9.0.2-h4", "PAN-OS 9.0.2-h3", "PAN-OS 9.0.2-h2", "PAN-OS 9.0.2-h1", "PAN-OS 9.0.2", "PAN-OS 9.0.1", "PAN-OS 9.0.0", "PAN-OS 9.0", "PAN-OS 8.1.19", "PAN-OS 8.1.18", "PAN-OS 8.1.17", "PAN-OS 8.1.16", "PAN-OS 8.1.15-h3", "PAN-OS 8.1.15-h2", "PAN-OS 8.1.15-h1", "PAN-OS 8.1.15", "PAN-OS 8.1.14-h2", "PAN-OS 8.1.14-h1", "PAN-OS 8.1.14", "PAN-OS 8.1.13", "PAN-OS 8.1.12", "PAN-OS 8.1.11", "PAN-OS 8.1.10", "PAN-OS 8.1.9-h4", "PAN-OS 8.1.9-h3", "PAN-OS 8.1.9-h2", "PAN-OS 8.1.9-h1", "PAN-OS 8.1.9", "PAN-OS 8.1.8-h5", "PAN-OS 8.1.8-h4", "PAN-OS 8.1.8-h3", "PAN-OS 8.1.8-h2", "PAN-OS 8.1.8-h1", "PAN-OS 8.1.8", "PAN-OS 8.1.7", "PAN-OS 8.1.6-h2", "PAN-OS 8.1.6-h1", "PAN-OS 8.1.6", "PAN-OS 8.1.5", "PAN-OS 8.1.4", "PAN-OS 8.1.3", "PAN-OS 8.1.2", "PAN-OS 8.1.1", "PAN-OS 8.1.0", "PAN-OS 8.1", ], x_likelyAffectedList: [ "PAN-OS 8.0.20", "PAN-OS 8.0.19-h1", "PAN-OS 8.0.19", "PAN-OS 8.0.18", "PAN-OS 8.0.17", "PAN-OS 8.0.16", "PAN-OS 8.0.15", "PAN-OS 8.0.14", "PAN-OS 8.0.13", "PAN-OS 8.0.12", "PAN-OS 8.0.11-h1", "PAN-OS 8.0.10", "PAN-OS 8.0.9", "PAN-OS 8.0.8", "PAN-OS 8.0.7", "PAN-OS 8.0.6-h3", "PAN-OS 8.0.6-h2", "PAN-OS 8.0.6-h1", "PAN-OS 8.0.6", "PAN-OS 8.0.5", "PAN-OS 8.0.4", "PAN-OS 8.0.3-h4", "PAN-OS 8.0.3-h3", "PAN-OS 8.0.3-h2", "PAN-OS 8.0.3-h1", "PAN-OS 8.0.3", "PAN-OS 8.0.2", "PAN-OS 8.0.1", "PAN-OS 8.0.0", "PAN-OS 8.0", "PAN-OS 7.1.26", "PAN-OS 7.1.25", "PAN-OS 7.1.24-h1", "PAN-OS 7.1.24", "PAN-OS 7.1.23", "PAN-OS 7.1.22", "PAN-OS 7.1.21", "PAN-OS 7.1.20", "PAN-OS 7.1.19", "PAN-OS 7.1.18", "PAN-OS 7.1.17", "PAN-OS 7.1.16", "PAN-OS 7.1.15", "PAN-OS 7.1.14", "PAN-OS 7.1.13", "PAN-OS 7.1.12", "PAN-OS 7.1.11", "PAN-OS 7.1.10", "PAN-OS 7.1.9-h4", "PAN-OS 7.1.9-h3", "PAN-OS 7.1.9-h2", "PAN-OS 7.1.9-h1", "PAN-OS 7.1.9", "PAN-OS 7.1.8", "PAN-OS 7.1.7", "PAN-OS 7.1.6", "PAN-OS 7.1.5", "PAN-OS 7.1.4-h2", "PAN-OS 7.1.4-h1", "PAN-OS 7.1.4", "PAN-OS 7.1.3", "PAN-OS 7.1.2", "PAN-OS 7.1.1", "PAN-OS 7.1.0", "PAN-OS 7.1", ], }, }, }, cveMetadata: { assignerOrgId: "d6c1279f-00f6-4ef7-9217-f89ffe703ec0", assignerShortName: "palo_alto", cveId: "CVE-2021-3055", datePublished: "2021-09-08T17:10:22.809239Z", dateReserved: "2021-01-06T00:00:00", dateUpdated: "2024-09-17T00:30:33.926Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { nvd: "{\"cve\":{\"id\":\"CVE-2021-3055\",\"sourceIdentifier\":\"psirt@paloaltonetworks.com\",\"published\":\"2021-09-08T17:15:12.337\",\"lastModified\":\"2024-11-21T06:20:51.793\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An improper restriction of XML external entity (XXE) reference vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator to read any arbitrary file from the file system and send a specifically crafted request to the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.6. This issue does not affect Prisma Access.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de restricción inapropiada de tipo XML external entity (XXE) en la interfaz web de Palo Alto Networks PAN-OS permite a un administrador autenticado leer cualquier archivo arbitrario del sistema de archivos y enviar una petición específicamente diseñada al firewall que cause el bloqueo del servicio. Los intentos repetidos de enviar esta petición resultarán en una denegación de servicio de todos los servicios de PAN-OS, al reiniciar el dispositivo y poniéndolo en modo de mantenimiento. Este problema afecta a: PAN-OS versión 8.1 anteriores a PAN-OS 8.1.20; PAN-OS versión 9.0 anteriores a PAN-OS 9.0.14; PAN-OS versión 9.1 anteriores a PAN-OS 9.1.10; PAN-OS versión 10.0 anteriores a PAN-OS 10.0.6. Este problema no afecta a Prisma Access\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@paloaltonetworks.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.2,\"impactScore\":5.2},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.2,\"impactScore\":5.2}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:P/I:N/A:C\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":8.0,\"impactScore\":7.8,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"psirt@paloaltonetworks.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-611\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-611\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.1.0\",\"versionEndExcluding\":\"8.1.20\",\"matchCriteriaId\":\"97BB12BB-096E-4CCD-B5F4-55900801DF74\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.0.0\",\"versionEndExcluding\":\"9.0.14\",\"matchCriteriaId\":\"E9EE274A-3AF1-4204-B43D-1EA54C6442CC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.1.0\",\"versionEndExcluding\":\"9.1.10\",\"matchCriteriaId\":\"6EED4206-00CC-449A-9681-612EC258CCEF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.0.0\",\"versionEndExcluding\":\"10.0.6\",\"matchCriteriaId\":\"F1E99AF9-C4D4-4F8F-8FE3-2580F47B97C7\"}]}]}],\"references\":[{\"url\":\"https://security.paloaltonetworks.com/CVE-2021-3055\",\"source\":\"psirt@paloaltonetworks.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://security.paloaltonetworks.com/CVE-2021-3055\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}", }, }
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- 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.