802.11 Frame Aggregation and Fragmentation Vulnerability in Fortinet FortiAP and Meru AP
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-26139 |
| CWE-ID | CWE-20 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
FortiAP-C Hardware solutions / Routers & switches, VoIP, GSM, etc FortiAP-U Hardware solutions / Routers & switches, VoIP, GSM, etc FortiAP-S Hardware solutions / Routers & switches, VoIP, GSM, etc FortiAP-W2 Hardware solutions / Routers & switches, VoIP, GSM, etc FortiAP Hardware solutions / Routers & switches, VoIP, GSM, etc Meru AP Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Fortinet, Inc |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Input validation error
EUVDB-ID: #VU53174
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-26139
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to forwarding EAPOL frames even though the sender is not yet authenticated. A remote attacker on the local network can cause a denial of service (DoS) condition on the target system.
MitigationInstall update from vendor's website.
Vulnerable software versionsFortiAP-C: 5.4.0 - 5.4.2
FortiAP-U: 5.4.0 - 6.2.1
FortiAP-S: 5.4.0 - 6.4.5
FortiAP-W2: 5.4.0 - 7.0.0
FortiAP: 5.4.0 - 7.0.0
Meru AP: 8.5.0 - 8.6.0
CPE2.3- cpe:2.3:h:fortinet:fortiap-u:6.2.1:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-u:6.0.4:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-u:5.4.6:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-s:6.2.6:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-s:6.4.5:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-s:5.4.5:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-s:5.6.4:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-s:6.0.6:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-w2:6.2.6:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-w2:6.4.5:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-w2:7.0.0:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-w2:5.4.5:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-w2:5.6.4:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-w2:6.0.6:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap:5.4.4:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap:5.6.5:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap:6.0.6:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap:6.4.5:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap:7.0.0:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-c:5.4.2:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-c:5.4.1:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:fortiap-c:5.4.0:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:meru_ap:8.5.2:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:meru_ap:8.6.0:*:*:*:*:*:*:
- cpe:2.3:h:fortinet:meru_ap:8.5.0:*:*:*:*:*:*:
http://www.fortiguard.com/psirt/FG-IR-21-071
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
