CVE-2020-1992— PAN-OS on PA-7000 Series: Varrcvr daemon network-based denial of service or privilege escalation
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I. Basic Information for CVE-2020-1992
Vulnerability Information
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Vulnerability Title
PAN-OS on PA-7000 Series: Varrcvr daemon network-based denial of service or privilege escalation
Source: NVD (National Vulnerability Database)
Vulnerability Description
A format string vulnerability in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC) allows remote attackers to crash the daemon creating a denial of service condition or potentially execute code with root privileges. This issue affects Palo Alto Networks PAN-OS 9.0 versions before 9.0.7; PAN-OS 9.1 versions before 9.1.2 on PA-7000 Series devices with an LFC installed and configured. This issue requires WildFire services to be configured and enabled. This issue does not affect PAN-OS 8.1 and earlier releases. This issue does not affect any other PA Series firewalls.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用外部控制的格式字符串
Source: NVD (National Vulnerability Database)
Vulnerability Title
Palo Alto Networks PAN-OS 格式化字符串错误漏洞
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中的PAN-OS 9.0.7之前的9.0版本和9.1.2之前的9.1版本的Varrcvr守护程序存在格式化字符串错误漏洞。远程攻击者可利用该漏洞导致守护程序崩溃或可能以root权限执行代码。
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 ~ 9.0.7 | - | |
| Palo Alto Networks | PAN-OS | 8.1.* | - |
II. Public POCs for CVE-2020-1992
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- https://security.paloaltonetworks.com/CVE-2020-1992x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2020-1992
Same Patch Batch · Palo Alto Networks · 2020-04-08 · 7 CVEs total
| CVE-2020-1991 | 7.8 HIGH | Traps: Insecure temporary file vulnerability may allow privilege escalation on Windows |
| CVE-2020-1990 | 7.2 HIGH | PAN-OS: Buffer overflow in the management server |
| CVE-2020-1989 | 7.0 HIGH | Global Protect Agent: Incorrect privilege assignment allows local privilege escalation |
| CVE-2020-1978 | 5.8 MEDIUM | VM-Series on Microsoft Azure: Inadvertent collection of credentials in Tech support files |
| CVE-2020-1988 | 4.2 MEDIUM | Global Protect Agent: Local privilege escalation due to an unquoted search path vulnerabil |
| CVE-2020-1987 | 3.9 LOW | Global Protect Agent: VPN cookie local information disclosure |
IV. Related Vulnerabilities
Same product: PAN-OS
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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
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V. Comments for CVE-2020-1992
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