CVE-2021-3055

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.

CVSS v3 6.5 MEDIUM
CVSS v2.0 7.5 HIGH

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:P/I:N/A:C

Exploitability : 8.0 / Impact : 7.8

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://security.paloaltonetworks.com/CVE-2021-3055	Vendor Advisory
https://security.paloaltonetworks.com/CVE-2021-3055	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::::::::

History

No history.

Information

Published : 2021-09-08 17:15

Updated : 2024-11-21 06:20

NVD link : CVE-2021-3055

Mitre link : CVE-2021-3055

CVE.ORG link : CVE-2021-3055

JSON object : View

Products Affected

paloaltonetworks

pan-os

CWE

CWE-611

Improper Restriction of XML External Entity Reference

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