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6.4
MEDIUM CVSS 2.0
CVE-2015-2323
FortiOS TLS Cipher Weakness
Description

FortiOS 5.0.x before 5.0.12 and 5.2.x before 5.2.4 supports anonymous, export, RC4, and possibly other weak ciphers when using TLS to connect to FortiGuard servers, which allows man-in-the-middle attackers to spoof TLS content by modifying packets.

INFO

Published Date :

Aug. 11, 2015, 2:59 p.m.

Last Modified :

April 12, 2025, 10:46 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2015-2323 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
: Total Affected Vendor : 1 | Products : 1
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]
Solution
This information is provided by the 3rd party feeds.
  • Upgrade to Fortinet FortiOS 5.0.12 / 5.2.4 or later.
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-2015-2323.

URL Resource
http://fortiguard.com/advisory/2015-07-24-weak-ciphers-suites-are-presented-towards-fortiguard-servers
http://www.fortiguard.com/advisory/FG-IR-15-021/ Vendor Advisory
http://www.securitytracker.com/id/1033092
http://fortiguard.com/advisory/2015-07-24-weak-ciphers-suites-are-presented-towards-fortiguard-servers
http://www.fortiguard.com/advisory/FG-IR-15-021/ Vendor Advisory
http://www.securitytracker.com/id/1033092
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2015-2323 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-2015-2323 weaknesses.

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).

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

The following list is the news that have been mention CVE-2015-2323 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-2015-2323 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 http://fortiguard.com/advisory/2015-07-24-weak-ciphers-suites-are-presented-towards-fortiguard-servers
    Added Reference http://www.fortiguard.com/advisory/FG-IR-15-021/
    Added Reference http://www.securitytracker.com/id/1033092
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Dec. 03, 2016

    Action Type Old Value New Value
    Added Reference http://fortiguard.com/advisory/2015-07-24-weak-ciphers-suites-are-presented-towards-fortiguard-servers [No Types Assigned]
  • CVE Translated by [email protected]

    Aug. 26, 2015

    Action Type Old Value New Value
    Removed Translation FortiOS en versión 5.0.x anterior a 5.0.12 y 5.2.x anterior a 5.2.4 soporta el anonimato, exportación, RC4 y posiblemente otros cifrados débiles al utilizar TLS para conectarse a los servidores de FortiGuard, permitiendo a atacantes man-in-the-middle suplantar contenido TLS mediante la modificación de los paquetes.
    Added Translation Vulnerabilidad en FortiOS 5.0.x en versiones anteriores a 5.0.12 y 5.2.x en versiones anteriores a 5.2.4 admite el anonimato, exportación, RC4 y posiblemente otros cifrados débiles al utilizar TLS para conectarse a los servidores de FortiGuard, lo que permite a atacantes man-in-the-middle suplantar contenido TLS mediante la modificación de los paquetes.
  • Modified Analysis by [email protected]

    Aug. 11, 2015

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:o:fortinet:fortios:5.0.0:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.1:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.2:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.3:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.4:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.5:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.6:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.7:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.8:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.9:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.10:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.0.11:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.2.0:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.2.1:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.2.2:*:*:*:*:*:*:* *cpe:2.3:o:fortinet:fortios:5.2.3:*:*:*:*:*:*:*
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:N)
    Changed Reference Type http://www.fortiguard.com/advisory/FG-IR-15-021/ No Types Assigned http://www.fortiguard.com/advisory/FG-IR-15-021/ Advisory
    Added CWE CWE-310
  • Initial Analysis by [email protected]

    Aug. 11, 2015

    Action Type Old Value New Value
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: 6.4
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.

0.29 }} -0.11%

score

0.51896

percentile