CVE-2021-3031— PAN-OS: Information exposure in Ethernet data frame construction (Etherleak)
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I. Basic Information for CVE-2021-3031
Vulnerability Information
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Vulnerability Title
PAN-OS: Information exposure in Ethernet data frame construction (Etherleak)
Source: NVD (National Vulnerability Database)
Vulnerability Description
Padding bytes in Ethernet packets on PA-200, PA-220, PA-500, PA-800, PA-2000 Series, PA-3000 Series, PA-3200 Series, PA-5200 Series, and PA-7000 Series firewalls are not cleared before the data frame is created. This leaks a small amount of random information from the firewall memory into the Ethernet packets. An attacker on the same Ethernet subnet as the PAN-OS firewall is able to collect potentially sensitive information from these packets. This issue is also known as Etherleak and is detected by security scanners as CVE-2003-0001. This issue impacts: PAN-OS 8.1 version earlier than PAN-OS 8.1.18; PAN-OS 9.0 versions earlier than PAN-OS 9.0.12; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
多款 Palo Alto Networks 产品信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Palo Alto Networks PAN-OS等都是美国Palo Alto Networks公司的产品。Palo Alto Networks PAN-OS是一套为其防火墙设备开发的操作系统。Palo Alto Networks PA-200是一款防火墙设备。Palo Alto Networks PA-220是一款防火墙设备。 多款 Palo Alto Networks 产品存在信息泄露漏洞，该漏洞源于程序创建数据帧之前不会清除以太网报文中的填充字节。这会将少量随机信息从防火墙内存泄漏到以太网数据包中。
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 | 8.1 ~ 8.1.18 | - | |
| Palo Alto Networks | PAN-OS | 10.0.* | - |
II. Public POCs for CVE-2021-3031
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://security.paloaltonetworks.com/CVE-2021-3031x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3031
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V. Comments for CVE-2021-3031
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