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CVE-2021-3055

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CVE-2021-3055

Published: Sep 8, 2021

Modified: Sep 17, 2024

PUBLISHED

CVSS v3.1

6.5

MEDIUM

Description

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.

VendorProductVersions

Palo Alto Networks

PAN-OS

unaffected
10.1.*
affected
9.0 - < 9.0.14
affected
9.1 - < 9.1.10
affected
10.0 - < 10.0.6
affected
8.1 - < 8.1.20

Weaknesses (CWE)

CWE-611

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

References

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