Format string error in Palo Alto PAN-OS on PA-7000 Series
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-1992 |
| CWE-ID | CWE-134 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Palo Alto PAN-OS Operating systems & Components / Operating system |
| Vendor | Palo Alto Networks, Inc. |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Format string error
EUVDB-ID: #VU26742
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-1992
CWE-ID:
CWE-134 - Use of Externally-Controlled Format String
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a format string error in the Varrcvr daemon of PAN-OS on PA-7000 Series devices with a Log Forwarding Card (LFC). A remote attacker can supply a specially crafted input that contains format string specifiers and cause a denial of service (DoS) condition or execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPalo Alto PAN-OS: 9.0.0 - 9.1.1
External linkshttp://security.paloaltonetworks.com/CVE-2020-1992
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
