CVE-2021-3056

A memory corruption vulnerability in Palo Alto Networks PAN-OS GlobalProtect Clientless VPN enables an authenticated attacker to execute arbitrary code with root user privileges during SAML authentication. 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 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1. Prisma Access customers with Prisma Access 2.1 Preferred firewalls are impacted by this issue.

CVSS v3 8.8 HIGH
CVSS v2.0 8.5 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

8.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:M/Au:S/C:C/I:C/A:C

Exploitability : 6.8 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://security.paloaltonetworks.com/CVE-2021-3056	Vendor Advisory
https://security.paloaltonetworks.com/CVE-2021-3056	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:paloaltonetworks:pan-os::::::::
	cpe:2.3:o:paloaltonetworks:pan-os::::::::
	cpe:2.3:o:paloaltonetworks:pan-os::::::::
	cpe:2.3:o:paloaltonetworks:pan-os:10.0.0:::::::*

History

21 Nov 2024, 06:20

Type	Values Removed	Values Added
References	~~() https://security.paloaltonetworks.com/CVE-2021-3056 - Vendor Advisory~~	() https://security.paloaltonetworks.com/CVE-2021-3056 - Vendor Advisory

Information

Published : 2021-11-10 17:15

Updated : 2024-11-21 06:20

NVD link : CVE-2021-3056

Mitre link : CVE-2021-3056

CVE.ORG link : CVE-2021-3056

JSON object : View

Products Affected

paloaltonetworks

pan-os

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-787

Out-of-bounds Write

{"id": "CVE-2021-3056", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 8.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@paloaltonetworks.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2021-11-10T17:15:09.553", "references": [{"url": "https://security.paloaltonetworks.com/CVE-2021-3056", "tags": ["Vendor Advisory"], "source": "psirt@paloaltonetworks.com"}, {"url": "https://security.paloaltonetworks.com/CVE-2021-3056", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "psirt@paloaltonetworks.com", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "A memory corruption vulnerability in Palo Alto Networks PAN-OS GlobalProtect Clientless VPN enables an authenticated attacker to execute arbitrary code with root user privileges during SAML authentication. 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 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1. Prisma Access customers with Prisma Access 2.1 Preferred firewalls are impacted by this issue."}, {"lang": "es", "value": "Una vulnerabilidad de corrupci\u00f3n de memoria en Palo Alto Networks PAN-OS GlobalProtect Clientless VPN permite a un atacante autenticado ejecutar c\u00f3digo arbitrario con privilegios de usuario root durante la autenticaci\u00f3n SAML. Este problema afecta a: PAN-OS versiones 8.1 anteriores a PAN-OS 8.1.20; PAN-OS versiones 9.0 anteriores a PAN-OS 9.0.14; PAN-OS versiones 9.1 anteriores a PAN-OS 9.1.9; PAN-OS versiones 10.0 anteriores a PAN-OS 10.0.1. Los clientes de Prisma Access Prisma Access versi\u00f3n 2.1 con firewall Preferidos est\u00e1n afectados por este problema\n"}], "lastModified": "2024-11-21T06:20:51.940", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "97BB12BB-096E-4CCD-B5F4-55900801DF74", "versionEndExcluding": "8.1.20", "versionStartIncluding": "8.1.0"}, {"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E9EE274A-3AF1-4204-B43D-1EA54C6442CC", "versionEndExcluding": "9.0.14", "versionStartIncluding": "9.0.0"}, {"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5075D342-EE42-4659-BD55-2D9FE7496C34", "versionEndExcluding": "9.1.9", "versionStartIncluding": "9.1.0"}, {"criteria": "cpe:2.3:o:paloaltonetworks:pan-os:10.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B16437C0-FDAA-45FB-B28B-12249F7B2F05"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@paloaltonetworks.com"}