Multiple vulnerabilities in Fortinet FortiTester



Published: 2022-10-10
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-35846
CVE-2022-35844
CVE-2022-33873
CWE-ID CWE-307
CWE-78
Exploitation vector Network
Public exploit N/A
Vulnerable software
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FortiTester
Server applications / Other server solutions

Vendor Fortinet, Inc

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Improper Restriction of Excessive Authentication Attempts

EUVDB-ID: #VU68104

Risk: Medium

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-2022-35846

CWE-ID: CWE-307 - Improper Restriction of Excessive Authentication Attempts

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a brute-force attack.

The vulnerability exists due to missing brute-force protection within the Telnet service. A remote non-authenticated attacker can guess credentials of an admin user via a brute force attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiTester: 2.3.0 - 7.1.0

External links

http://fortiguard.fortinet.com/psirt/FG-IR-22-244


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.

2) OS Command Injection

EUVDB-ID: #VU68103

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-35844

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation in the management interface. A local user can pass specifically crafted arguments to commands of the certificate import feature and execute arbitrary OS commands on the system.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiTester: 2.3.0 - 7.1.0

External links

http://fortiguard.fortinet.com/psirt/FG-IR-22-247


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.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) OS Command Injection

EUVDB-ID: #VU68102

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-33873

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation within the Console, Telnet, and SSH login components. A remote unauthenticated attacker can send a specially crafted request to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiTester: 2.3.0 - 7.1.0

External links

http://fortiguard.fortinet.com/psirt/FG-IR-22-237


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.



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