Privilege escalation in Fortinet FortiWAN
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-26115 |
| CWE-ID | CWE-78 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
FortiWAN Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Fortinet, Inc |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) OS Command Injection
EUVDB-ID: #VU54725
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-26115
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper input validation when processing certain OS commands. A local unprivileged user can execute arbitrary OS commands with root privileges.
Install updates from vendor's website.
Vulnerable software versionsFortiWAN: 4.0.0 - 4.5.7
External linkshttp://www.fortiguard.com/psirt/FG-IR-21-069
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
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.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
