CVE-2022-0023 Vulnerability Analysis & Exploit Details

CVE-2022-0023
Vulnerability Scoring

5.9
/10
Significant Risk

Security assessments indicate that CVE-2022-0023 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2022-0023 Details

Status: Modified

Last updated: 🕡 21 Nov 2024, 06:37 UTC
Originally published on: 🕖 13 Apr 2022, 19:15 UTC

Time between publication and last update: 952 days

CVSS Release: version 3

CVSS3 Source

psirt@paloaltonetworks.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2022-0023 Vulnerability Summary

CVE-2022-0023: An improper handling of exceptional conditions vulnerability exists in the DNS proxy feature of Palo Alto Networks PAN-OS software that enables a meddler-in-the-middle (MITM) to send specifically crafted traffic to the firewall that causes the service to restart unexpectedly. Repeated attempts to send this request result in denial-of-service to all PAN-OS services by restarting the device in maintenance mode. This issue does not impact Panorama appliances and Prisma Access customers. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.22; PAN-OS 9.0 versions earlier than PAN-OS 9.0.16; PAN-OS 9.1 versions earlier than PAN-OS 9.1.13; PAN-OS 10.0 versions earlier than PAN-OS 10.0.10; PAN-OS 10.1 versions earlier than PAN-OS 10.1.5. This issue does not impact PAN-OS 10.2.

Assessing the Risk of CVE-2022-0023

Access Complexity Graph

The exploitability of CVE-2022-0023 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2022-0023

CVE-2022-0023 presents a challenge to exploit due to its high attack complexity, but the absence of privilege requirements still makes it a viable target for skilled attackers. A thorough security review is advised.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2022-0023, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2022-0023, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2022-0023 has no significant impact on data confidentiality.
  • Integrity: None
    CVE-2022-0023 poses no threat to data integrity.
  • Availability: High
    CVE-2022-0023 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.081% (probability of exploit)

EPSS Percentile: 37.59% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 62.41% of others.

CVE-2022-0023 References

External References

CWE Common Weakness Enumeration

CWE-755

Vulnerable Configurations

  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.4:-:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.4:-:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.4:h2:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.4:h2:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.5:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.5:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.6:-:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.6:-:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.6:h2:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.6:h2:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.7:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.7:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.8:-:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.8:-:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.8:h4:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.8:h4:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.8:h5:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.8:h5:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.9:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.9:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.10:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.10:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.11:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.11:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.12:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.12:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.13:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.13:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.14:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.14:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.15:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.15:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.16:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.16:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.17:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.17:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.18:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.18:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.19:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.19:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.20:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.20:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:8.1.21:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:8.1.21:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.0:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.0:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.2:-:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.2:-:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.2:h4:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.2:h4:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.3:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.3:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.4:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.4:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.5:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.5:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.6:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.6:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.7:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.7:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.8:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.8:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.9:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.9:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.10:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.10:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.11:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.11:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.12:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.12:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.13:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.13:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.14:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.14:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.0.15:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.0.15:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.3:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.4:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.4:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.5:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.5:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.6:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.6:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.9:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.9:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.10:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.10:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.11:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.11:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:9.1.12:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:9.1.12:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.0:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.0:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.1:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.1:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.2:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.2:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.3:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.3:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.4:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.4:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.5:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.5:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.6:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.6:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.7:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.7:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.8:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.8:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.0.9:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.0.9:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.1.0:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.1.0:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.1.1:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.1.1:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.1.2:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.1.2:*:*:*:*:*:*:*
  • cpe:2.3:o:paloaltonetworks:pan-os:10.1.3:*:*:*:*:*:*:*
    cpe:2.3:o:paloaltonetworks:pan-os:10.1.3:*:*:*:*:*:*:*

Protect Your Infrastructure against CVE-2022-0023: Combat Critical CVE Threats

Stay updated with real-time CVE vulnerabilities and take action to secure your systems. Enhance your cybersecurity posture with the latest threat intelligence and mitigation techniques. Develop the skills necessary to defend against CVEs and secure critical infrastructures. Join the top cybersecurity professionals safeguarding today's infrastructures.

Other 5 Recently Published CVEs Vulnerabilities

  • CVE-2025-3284 – The User Registration & Membership – Custom Registration Form, Login Form, and User Profile plugin for WordPress is vulnerable to Cross-Site Reques...
  • CVE-2025-3278 – The UrbanGo Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 1.0.4. This is due to the plugi...
  • CVE-2025-2010 – The JobWP – Job Board, Job Listing, Career Page and Recruitment Plugin plugin for WordPress is vulnerable to SQL Injection via the 'jobwp_upload_re...
  • CVE-2025-43903 – NSSCryptoSignBackend.cc in Poppler before 25.04.0 does not verify the adbe.pkcs7.sha1 signatures on documents, resulting in potential signature forgeries.
  • CVE-2025-3796 – A vulnerability classified as critical has been found in PHPGurukul Men Salon Management System 1.0. This affects an unknown part of the file /admi...