CVE-2020-2039— PAN-OS: Management web interface denial-of-service (DoS) through unauthenticated file upload
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I. Basic Information for CVE-2020-2039
Vulnerability Information
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Vulnerability Title
PAN-OS: Management web interface denial-of-service (DoS) through unauthenticated file upload
Source: NVD (National Vulnerability Database)
Vulnerability Description
An uncontrolled resource consumption vulnerability in Palo Alto Networks PAN-OS allows for a remote unauthenticated user to upload temporary files through the management web interface that are not properly deleted after the request is finished. It is possible for an attacker to disrupt the availability of the management web interface by repeatedly uploading files until available disk space is exhausted. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.16; PAN-OS 9.0 versions earlier than PAN-OS 9.0.10; PAN-OS 9.1 versions earlier than PAN-OS 9.1.4; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Palo Alto Networks PAN-OS 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks PAN-OS是美国Palo Alto Networks公司的一套为其防火墙设备开发的操作系统。 Palo Alto Networks PAN-OS 资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。攻击者可利用该漏洞反复上传文件。以下是受到影响的产品及版本：8.1到8.1.16 版本、9.0到9.0.10版本、9.1到9.1.4的版本、10.0到10.0.1版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Palo Alto Networks | PAN-OS | 9.1 ~ 9.1.4 | - |
II. Public POCs for CVE-2020-2039
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://security.paloaltonetworks.com/CVE-2020-2039x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2020-2039
Same Patch Batch · Palo Alto Networks · 2020-09-09 · 9 CVEs total
| CVE-2020-2040 | 9.8 CRITICAL | PAN-OS: Buffer overflow when Captive Portal or Multi-Factor Authentication (MFA) is enable |
| CVE-2020-2036 | 8.8 HIGH | PAN-OS: Reflected Cross-Site Scripting (XSS) vulnerability in management web interface |
| CVE-2020-2041 | 7.5 HIGH | PAN-OS: Management web interface denial-of-service (DoS) |
| CVE-2020-2037 | 7.2 HIGH | PAN-OS: OS command injection vulnerability in the management web interface |
| CVE-2020-2038 | 7.2 HIGH | PAN-OS: OS command injection vulnerability in the management web interface |
| CVE-2020-2042 | 7.2 HIGH | PAN-OS: Buffer overflow in the management web interface |
| CVE-2020-2043 | 3.3 LOW | PAN-OS: Passwords may be logged in clear text when using after-change-detail custom syslog |
| CVE-2020-2044 | 3.3 LOW | PAN-OS: Passwords may be logged in clear text while storing operational command (op comman |
IV. Related Vulnerabilities
Same product: PAN-OS
- CVE-2025-0116
PAN-OS: Firewall Denial of Service (DoS) Using a Specially C - CVE-2025-0115
PAN-OS: Authenticated Admin File Read Vulnerability in PAN-O - CVE-2025-0114
PAN-OS: Denial of Service (DoS) in GlobalProtect - CVE-2024-9471
PAN-OS: Privilege Escalation (PE) Vulnerability in XML API - CVE-2024-8691
PAN-OS: User Impersonation in GlobalProtect Portal
Same vendor: Palo Alto Networks
- CVE-2026-0300
PAN-OS: Unauthenticated user initiated Buffer Overflow Vulne - CVE-2026-0232
Cortex XDR Agent: Local Administrator can disable the agent - CVE-2026-0233
Autonomous Digital Experience Manager: Improper validation o - CVE-2026-0234
Cortex XSOAR: Improper Verification of Cryptographic Signatu - CVE-2026-0231
Cortex XDR Broker VM: Sensitive Information Disclosure Vulne
Same weakness: CWE-400
- CVE-2026-8187
Open5GS UPF gtp-path.c _gtpv1_u_recv_cb resource consumption - CVE-2026-42343
FastGPT: Uncontrolled Resource Consumption leading to Sandbo - CVE-2026-42212
SolidCAM-GPPL-IDE: XML External Entity (XXE) and billion-lau - CVE-2026-32686
Unbounded exponent in decimal enables unauthenticated DoS - CVE-2026-20188
Cisco Crosswork Network Controller and Cisco Network Service
V. Comments for CVE-2020-2039
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