CVE-2020-2027 PAN-OS: Buffer overflow in authd authentication response
Authenticated administrators can trigger a buffer overflow in authd to execute arbitrary code with root privileges on PAN-OS management servers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-2027?
CVE-2020-2027 is a high-severity memory corruption vulnerability in Paloaltonetworks Pan-Os, published on 10 Jun 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A buffer overflow vulnerability in the authd component of the PAN-OS management server allows authenticated administrators to disrupt system processes and potentially execute arbitrary code with root privileges. This issue affects: All versions of PAN-OS 7.1 and PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.13; PAN-OS 9.0 versions earlier than PAN-OS 9.0.7.
Which versions are affected by CVE-2020-2027?
It affects 1 product.
Products include Paloaltonetworks Pan-Os.
How do I fix CVE-2020-2027?
No fix has been published for CVE-2020-2027 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-2027 being exploited?
There is no known exploitation of CVE-2020-2027 in the wild and no public exploit code.
Other vulnerabilities in Paloaltonetworks Pan-Os
- CVE-2024-3400 Palo Alto Networks PAN-OS Command Injection
- CVE-2020-2021 Palo Alto Networks PAN-OS Authentication Bypass
- CVE-2017-15944 Palo Alto Networks PAN-OS Remote Code Execution
- CVE-2026-0300 Palo Alto Networks PAN-OS Out-of-bounds Write
- CVE-2024-0012 Palo Alto Networks PAN-OS Management Interface Authentication Bypass
Sources
Also known as GHSA-xp27-mhxx-q8mf.