Vulnerability identifier: #VU29606
Vulnerability risk: Low
CVSSv3.1: 4.4 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-191
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Palo Alto PAN-OS
Operating systems & Components /
Operating system
Vendor: Palo Alto Networks, Inc.
Description
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow in the dnsproxyd component of the PAN-OS management interface. A remote authenticated administrator attacker can send a specially crafted request to the affected application, trigger integer underflow and perform a denial of service attack by restarting the device and putting it into maintenance mode.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Palo Alto PAN-OS: 9.1.0 - 9.1.2
External links
http://security.paloaltonetworks.com/CVE-2020-2031
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.