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CVE-2021-3053— PAN-OS: Exceptional Condition 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 dataplan 存在权限许可和访问控制问题漏洞，该漏洞源于 Palo Alto Networks PAN-OS dataplan 中存在对异常条件漏洞的不当处理，该漏洞使未经身份验证的基于网络的攻击者能够通过防火墙发送特制的流量，从而导致服务崩溃。

CVSS 7.5 · High EPSS 1.01% · P62
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I. Basic Information for CVE-2021-3053

Vulnerability Information
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Vulnerability Title
PAN-OS: Exceptional Condition Denial-of-Service (DoS)
Source: CVE Program / CVE List V5
Vulnerability Description
An improper handling of exceptional conditions vulnerability exists in the Palo Alto Networks PAN-OS dataplane that enables an unauthenticated network-based attacker to send specifically crafted traffic through 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 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. This issue does not affect Prisma Access.
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
对异常条件的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Palo Alto Networks PAN-OS 权限许可和访问控制问题漏洞
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 dataplan 存在权限许可和访问控制问题漏洞，该漏洞源于 Palo Alto Networks PAN-OS dataplan 中存在对异常条件漏洞的不当处理，该漏洞使未经身份验证的基于网络的攻击者能够通过防火墙发送特制的流量，从而导致服务崩溃。
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 10.1.* -

II. Public POCs for CVE-2021-3053

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III. Intelligence Information for CVE-2021-3053

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Vendor Advisories for CVE-2021-3053 (1)

Same Patch Batch · Palo Alto Networks · 2021-09-08 · 6 CVEs total

CVE-2021-3051 8.1 HIGH Cortex XSOAR: Authentication Bypass in SAML Authentication
CVE-2021-3052 8.0 HIGH PAN-OS: Reflected Cross-Site Scripting (XSS) in Web Interface
CVE-2021-3054 7.2 HIGH PAN-OS: Unsigned Code Execution During Plugin Installation Race Condition Vulnerability
CVE-2021-3055 6.5 MEDIUM PAN-OS: XML External Entity (XXE) Reference Vulnerability in the PAN-OS Web Interface
CVE-2021-3049 2.6 LOW Cortex XSOAR: Improper Authorization of Incident Investigations Vulnerability

IV. Related Vulnerabilities

Same product: PAN-OS
Same vendor: Palo Alto Networks
Same weakness: CWE-755

V. Comments for CVE-2021-3053

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