Cyber Resilience

CVE-2023-42783

Path Traversal in Fortinet Fortiwlm 8.5.0 – 8.5.4

Path Traversal
Published
14 November 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 7.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0090 56th percentile
Risk Priority 59 floored blend · peak EPSS

Summary

CVE-2023-42783 is a high-severity Relative Path Traversal (CWE-23) vulnerability in Fortinet Fortiwlm. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 44% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

A relative path traversal in Fortinet FortiWLM version 8.6.0 through 8.6.5 and 8.5.0 through 8.5.4 and 8.4.2 through 8.4.0 and 8.3.2 through 8.3.0 and 8.2.2 allows attacker to read arbitrary files via crafted http requests.

CWE(s)
CWE-23

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-34990Same product: Fortinet Fortiwlm
CVE-2023-34991Same product: Fortinet Fortiwlm
CVE-2023-34988Same product: Fortinet Fortiwlm
CVE-2023-34985Same product: Fortinet Fortiwlm
CVE-2023-36549Same product: Fortinet Fortiwlm
CVE-2023-34986Same product: Fortinet Fortiwlm
CVE-2023-36548Same product: Fortinet Fortiwlm
CVE-2023-36547Same product: Fortinet Fortiwlm
CVE-2023-34993Same product: Fortinet Fortiwlm
CVE-2023-34987Same product: Fortinet Fortiwlm

Affected Assets

fortinet
fortiwlm
8.2.2, 8.3.0, 8.3.1, 8.3.2, 8.4.0 · 8.5.0 — 8.5.4 · 8.6.0 — 8.6.6

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V5.3.2

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and path sanitization that prevent relative traversal.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development catches path traversal via static/dynamic analysis, but does not itself implement the fix.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle mandates input validation and path-handling controls that directly prevent relative path traversal.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for controls against path traversal and other injection flaws.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles include directory isolation and canonicalization, reducing but not eliminating traversal risk.

A.8.28 Secure coding partial match
prevents

Secure coding standards require neutralizing path traversal sequences, directly addressing CWE-23.

A.8.3 Information access restriction partial match
mitigates

Information access restriction limits which files can be reached, mitigating impact but not preventing the traversal flaw.

References