Denial of service in Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-3436 |
| CWE-ID | CWE-434 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Cisco Adaptive Security Appliance (ASA) Hardware solutions / Security hardware applicances Cisco Firepower Threat Defense (FTD) Hardware solutions / Security hardware applicances |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Arbitrary file upload
EUVDB-ID: #VU47942
Risk: Medium
CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-3436
CWE-ID:
CWE-434 - Unrestricted Upload of File with Dangerous Type
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to the affected software does not efficiently handle the writing of large files to specific folders on the local file system. A remote attacker can upload a malicious file and cause a denial of service (DoS) condition on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Adaptive Security Appliance (ASA): 9.6 - 9.14
Cisco Firepower Threat Defense (FTD): 6.2.2 - 6.6.0
External linksQ & 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.
