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7.5
HIGH CVSS 3.1
CVE-2018-13381
Fortinet FortiOS FortiProxy SSL VPN Denial-of-Service Buffer Overflow
Description

A buffer overflow vulnerability in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.7, 5.4 and earlier versions and FortiProxy 2.0.0, 1.2.8 and earlier versions under SSL VPN web portal allows a non-authenticated attacker to perform a Denial-of-service attack via special craft message payloads.

INFO

Published Date :

June 4, 2019, 9:29 p.m.

Last Modified :

Nov. 21, 2024, 3:46 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2018-13381 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Fortinet fortios
2 Fortinet fortiproxy
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
Solution
This information is provided by the 3rd party feeds.
  • n/a
Public PoC/Exploit Available at Github

CVE-2018-13381 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-13381.

URL Resource
https://fortiguard.com/advisory/FG-IR-18-387 Mitigation Vendor Advisory
https://fortiguard.com/advisory/FG-IR-20-232 Vendor Advisory
https://fortiguard.com/advisory/FG-IR-18-387 Mitigation Vendor Advisory
https://fortiguard.com/advisory/FG-IR-20-232 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-13381 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-13381 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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SexyBeast233/SecBooks

安全类各家文库大乱斗

HTML CSS JavaScript Go Python Shell C

Updated: 4 weeks ago
1195 stars 286 fork 286 watcher
Born at : Feb. 15, 2022, 3:14 a.m. This repo has been linked 568 different CVEs too.
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jam620/forti-vpn

None

Updated: 4 years, 7 months ago
0 stars 0 fork 0 watcher
Born at : Jan. 19, 2021, 5:02 p.m. This repo has been linked 5 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-13381 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2018-13381 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://fortiguard.com/advisory/FG-IR-18-387
    Added Reference https://fortiguard.com/advisory/FG-IR-20-232
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Mar. 16, 2021

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://fortiguard.com/advisory/FG-IR-20-232 No Types Assigned https://fortiguard.com/advisory/FG-IR-20-232 Vendor Advisory
    Changed CPE Configuration OR *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions up to (including) 5.4 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 5.6.0 up to (including) 5.6.7 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.0.4 OR *cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:* versions up to (including) 1.2.8 *cpe:2.3:a:fortinet:fortiproxy:2.0.0:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions up to (including) 5.2.14 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 5.4.0 up to (including) 5.4.12 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 5.6.0 up to (including) 5.6.10 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.0.4
  • CVE Modified by [email protected]

    Mar. 09, 2021

    Action Type Old Value New Value
    Changed Description A buffer overflow vulnerability in Fortinet FortiOS 6.0.0 to 6.0.4, 5.6.0 to 5.6.7, 5.4 and below versions under SSL VPN web portal allows a non-authenticated attacker to perform a Denial-of-service attack via special craft message payloads. A buffer overflow vulnerability in Fortinet FortiOS 6.0.0 through 6.0.4, 5.6.0 through 5.6.7, 5.4 and earlier versions and FortiProxy 2.0.0, 1.2.8 and earlier versions under SSL VPN web portal allows a non-authenticated attacker to perform a Denial-of-service attack via special craft message payloads.
    Added CVSS V3.1 Fortinet, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    Removed Reference http://www.securityfocus.com/bid/108440 [Third Party Advisory, VDB Entry]
    Removed Reference https://devco.re/blog/2019/08/09/attacking-ssl-vpn-part-2-breaking-the-Fortigate-ssl-vpn/ [No Types Assigned]
    Added Reference https://fortiguard.com/advisory/FG-IR-20-232 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 29, 2019

    Action Type Old Value New Value
    Added Reference https://devco.re/blog/2019/08/09/attacking-ssl-vpn-part-2-breaking-the-Fortigate-ssl-vpn/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 05, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://fortiguard.com/advisory/FG-IR-18-387 No Types Assigned https://fortiguard.com/advisory/FG-IR-18-387 Mitigation, Vendor Advisory
    Changed Reference Type http://www.securityfocus.com/bid/108440 No Types Assigned http://www.securityfocus.com/bid/108440 Third Party Advisory, VDB Entry
    Added CWE CWE-119
    Added CPE Configuration OR *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions up to (including) 5.4 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 5.6.0 up to (including) 5.6.7 *cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* versions from (including) 6.0.0 up to (including) 6.0.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.54 }} -0.02%

score

0.66589

percentile