CVE-2021-3055

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

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

V2 Legend

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
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

15 Sep 2021, 19:04

Type Values Removed Values Added
CPE cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:*
CWE CWE-611
CVSS v2 : unknown
v3 : 6.5 		v2 : 7.5
v3 : 6.5
References (CONFIRM) https://security.paloaltonetworks.com/CVE-2021-3055 - (CONFIRM) https://security.paloaltonetworks.com/CVE-2021-3055 - Vendor Advisory

08 Sep 2021, 18:15

Type Values Removed Values Added
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. 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.

08 Sep 2021, 17:24

Type Values Removed Values Added
New CVE
Information

Published : 2021-09-08 17:15

Updated : 2023-12-10 14:09

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