OS command injection in FortiManager and FortiAnalyzer
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-26104 |
| CWE-ID | CWE-78 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
FortiManager Server applications / IDS/IPS systems, Firewalls and proxy servers FortiAnalyzer Server applications / IDS/IPS systems, Firewalls and proxy servers |
| Vendor | Fortinet, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) OS Command Injection
EUVDB-ID: #VU55544
Risk: Medium
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-2021-26104
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 in the command line interface. A local user can execute arbitrary shell commands as root via specifically crafted CLI command parameters.
MitigationInstall update from vendor's website.
Vulnerable software versionsFortiManager: 5.6.0 - 6.4.5
FortiAnalyzer: 5.6.0 - 6.4.5
External linkshttp://www.fortiguard.com/psirt/FG-IR-21-037
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 application 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.
