CVE-2020-1999
Last modified
CVE-2020-1999 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. EPSS estimates a 1.32% chance of exploitation in the next 30 days.
Description
A vulnerability exists in the Palo Alto Network PAN-OS signature-based threat detection engine that allows an attacker to communicate with devices in the network in a way that is not analyzed for threats by sending data through specifically crafted TCP packets. This technique evades signature-based threat detection. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.17; PAN-OS 9.0 versions earlier than 9.0.11; PAN-OS 9.1 versions earlier than 9.1.5; All versions of PAN-OS 7.1 and PAN-OS 8.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Paloaltonetworks | Pan-Os | >= 7.1.0, <= 7.1.26 |
| Paloaltonetworks | Pan-Os | >= 8.0.0, <= 8.0.20 |
| Paloaltonetworks | Pan-Os | >= 8.1.0, < 8.1.17 |
| Paloaltonetworks | Pan-Os | >= 9.0.0, < 9.0.11 |
| Paloaltonetworks | Pan-Os | >= 9.1.0, < 9.1.5 |
References
- https://security.paloaltonetworks.com/CVE-2020-1999Vendor Advisory
- https://security.paloaltonetworks.com/CVE-2020-1999Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-1999?
How severe is CVE-2020-1999?
How do I fix CVE-2020-1999?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-19960A SQL injection vulnerability has been discovered in zz cms …7.5
- CVE-2020-19961A SQL injection vulnerability has been discovered in zz cms …7.5
- CVE-2020-19962A stored cross-site scripting (XSS) vulnerability in the get…5.4
- CVE-2020-19964A Cross Site Request Forgery (CSRF) vulnerability was discov…6.5
- CVE-2020-1997An open redirection vulnerability in the GlobalProtect compo…6.1
- CVE-2020-1998An improper authorization vulnerability in PAN-OS that mista…8.8
- CVE-2020-2000An OS command injection and memory corruption vulnerability …7.2
- CVE-2020-2001An external control of path and data vulnerability in the Pa…9.8
- CVE-2020-20012WebPlus Pro v1.4.7.8.4-01 is vulnerable to Incorrect Access …9.8
- CVE-2020-2002An authentication bypass by spoofing vulnerability exists in…8.1
- CVE-2020-20021An issue discovered in MikroTik Router v6.46.3 and earlier a…7.5
- CVE-2020-2003An external control of filename vulnerability in the command…6.5
Are you affected by CVE-2020-1999?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST