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CVE-2020-2041— PAN-OS: Management web interface denial-of-service (DoS)

Quick assessment

Affected
Palo Alto Networks PAN-OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 存在安全漏洞。该漏洞源于网络系统或组件的使用过程中存在不合理的文件配置、参数配置等。攻击者可利用该漏洞导致appweb服务崩溃。以下是受影响的产品及版本：PAN-OS 8.0，以及8.1.16之前的PAN-OS 8.1。

CVSS 7.5 · High EPSS 2.14% · P81

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-2041

Vulnerability Information
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Vulnerability Title
PAN-OS: Management web interface denial-of-service (DoS)
Source: CVE Program / CVE List V5
Vulnerability Description
An insecure configuration of the appweb daemon of Palo Alto Networks PAN-OS 8.1 allows a remote unauthenticated user to send a specifically crafted request to the device that causes the appweb 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 all versions of PAN-OS 8.0, and PAN-OS 8.1 versions earlier than 8.1.16.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
配置
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks PAN-OS 安全漏洞
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 存在安全漏洞。该漏洞源于网络系统或组件的使用过程中存在不合理的文件配置、参数配置等。攻击者可利用该漏洞导致appweb服务崩溃。以下是受影响的产品及版本：PAN-OS 8.0，以及8.1.16之前的PAN-OS 8.1。
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 9.0.* -

II. Public POCs for CVE-2020-2041

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III. Intelligence Information for CVE-2020-2041

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Vendor Advisories for CVE-2020-2041 (1)

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-2020-2037 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-2020-2039 5.3 MEDIUM PAN-OS: Management web interface denial-of-service (DoS) through unauthenticated file uplo
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
Same vendor: Palo Alto Networks
Same weakness: CWE-16

V. Comments for CVE-2020-2041

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