Skip to main content

Fortitester CVE-2023-36642

HIGH
Command Injection (CWE-77)
2023-09-13 psirt@fortinet.com
7.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Command injection prevention
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

A local attacker with access to the system could inject arbitrary commands into system command execution.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in the management interface of FortiTester 3.0.0 through 7.2.3 may allow an authenticated attacker to. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized APIs, avoid shell execution, validate input with strict allowlists.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Command Injection (CWE-77), which allows attackers to inject arbitrary commands into system command execution. An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in the management interface of FortiTester 3.0.0 through 7.2.3 may allow an authenticated attacker to execute unauthorized commands via specifically crafted arguments to existing commands. Affected products include: Fortinet Fortitester. Version information: through 7.2.3.

Know when Fortitester gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in the management interface of FortiTester 3.0.0 through 7.2.3 may allow an authenticated attacker to execute unauthorized commands via specifically crafted arguments to existing commands.

Threat Intelligence Overview

EPSS Score
0.2%
Top 90% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

Affected Products (CPE)NVD

cpe:2.3:a:fortinet:fortitester:*:*:*:*:*:*:*:*
CVE-2022-33874 CRITICAL
9.8 Oct 18

An improper neutralization of special elements used in an OS Command ('OS Command Injection') vulnerabilities [CWE-78] i

CVE-2022-33873 CRITICAL
9.8 Oct 18

An improper neutralization of special elements used in an OS Command ('OS Command Injection') vulnerabilities [CWE-78] i

CVE-2022-33872 CRITICAL
9.8 Oct 18

An improper neutralization of special elements used in an OS Command ('OS Command Injection') vulnerabilities [CWE-78] i

CVE-2022-35846 CRITICAL
9.8 Oct 18

An improper restriction of excessive authentication attempts vulnerability [CWE-307] in FortiTester Telnet port 2.3.0 th

CVE-2020-12817 HIGH
8.8 Sep 24

An improper neutralization of input vulnerability in FortiAnalyzer before 6.4.1 and 6.2.5 may allow a remote authenticat

CVE-2023-40716 HIGH
7.8 Dec 13

An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in the command line interpre

CVE-2023-40717 HIGH
7.8 Sep 13

A use of hard-coded credentials vulnerability [CWE-798] in FortiTester 2.3.0 through 7.2.3 may allow an attacker who man

CVE-2022-33870 HIGH
7.8 Nov 02

An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in the command line interpre

CVE-2022-35844 HIGH
7.2 Oct 18

An improper neutralization of special elements used in an OS command vulnerability [CWE-78] in the management interface

CVE-2022-38372 MEDIUM
6.7 Nov 02

A hidden functionality vulnerability [CWE-1242] in FortiTester CLI 2.3.0 through 3.9.1, 4.0.0 through 4.2.0, 7.0.0 throu

CVE-2023-40715 MEDIUM
5.5 Sep 13

A cleartext storage of sensitive information vulnerability [CWE-312] in FortiTester 2.3.0 through 7.2.3 may allow an att

CVE-2020-12815 MEDIUM
5.4 Sep 24

An improper neutralization of input vulnerability in FortiTester before 3.9.0 may allow a remote authenticated attacker

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy