Cyber Resilience

CVE-2024-26015

Fortinet Fortios 7.0.0 – 7.0.15

Published
09 July 2024
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 3.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
EPSS Score 0.0047 38th percentile
Risk Priority 30 floored blend · peak EPSS

Summary

CVE-2024-26015 is a low-severity Incorrect Parsing of Numbers with Different Radices (CWE-1389) vulnerability in Fortinet Fortios. Its CVSS base score is 3.4 (Low).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 38th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-15 (Development Process, Standards, and Tools) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

An incorrect parsing of numbers with different radices vulnerability [CWE-1389] in FortiProxy version 7.4.3 and below, version 7.2.10 and below, version 7.0.17 and below and FortiOS version 7.4.3 and below, version 7.2.8 and below, version 7.0.15 and below IP address…

more

validation feature may permit an unauthenticated attacker to bypass the IP blocklist via crafted requests.

CWE(s)
CWE-1389CWE-704

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
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 →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
T1687 Exploitation for Defense Impairment Defense Impairment
Adversaries may exploit vulnerabilities in security software, infrastructure, or defensive components to degrade, disable, or otherwise continue to impair their ability to prevent, detect, or respond to malicious activity.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-22639Same product: Fortinet Fortios
CVE-2023-33308Same product: Fortinet Fortios
CVE-2023-22640Same product: Fortinet Fortios
CVE-2018-13383Same product: Fortinet Fortios
CVE-2024-21762Same product: Fortinet Fortios
CVE-2023-42789Same product: Fortinet Fortios
CVE-2023-29178Same product: Fortinet Fortios
CVE-2023-36641Same product: Fortinet Fortios
CVE-2023-46718Same product: Fortinet Fortios
CVE-2023-42790Same product: Fortinet Fortios

Affected Assets

fortinet
fortiproxy
7.0.0 — 7.4.3
fortinet
fortios
7.0.0 — 7.0.15 · 7.2.0 — 7.2.8 · 7.4.0 — 7.4.3

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and evaluation (static analysis, fuzzing, unit tests) directly finds incorrect type conversions or casts.

SA-15 Development Process, Standards, and Tools partial match

Requiring documented development standards and tools can mandate safe typing, casting rules, and compiler checks that stop the weakness from being introduced.

SA-8 Security and Privacy Engineering Principles partial match

Security engineering principles can require type-safe design and casting practices that structurally avoid incorrect conversions.

SI-10 Information Input Validation partial match

Input validation can require numeric fields to be accepted only in explicit, unambiguous formats that handle or reject alternate radices.

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 prevent incorrect numeric parsing by enforcing input-handling standards and code review.

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 can detect radix-related parsing flaws but does not prevent them by itself.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle requires input validation and parsing rules that would catch radix assumptions.

A.8.26 Application security requirements partial match
prevents

Application security requirements include explicit handling of numeric input formats and bases.

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

Secure architecture principles discourage unsafe type conversions in design.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly mandate safe numeric parsing and validation of input bases.

References