Vulnerability Monitor

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CVE-2013-4669


FortiClient before 4.3.5.472 on Windows, before 4.0.3.134 on Mac OS X, and before 4.0 on Android; FortiClient Lite before 4.3.4.461 on Windows; FortiClient Lite 2.0 through 2.0.0223 on Android; and FortiClient SSL VPN before 4.0.2258 on Linux proceed with an SSL session after determining that the server's X.509 certificate is invalid, which allows man-in-the-middle attackers to obtain sensitive information by leveraging a password transmission that occurs before the user warning about the certificate problem.


Security Impact Summary

CVE-2013-4669 is a security vulnerability that . Impacting 7 products from fortinet, from microsoft, from fortinet and 4 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2013, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.


Published

2013-06-25T14:38:18.287

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.4 (MEDIUM)

CVSSv2 Vector

AV:N/AC:H/Au:N/C:C/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: HIGH
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

4.9

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-255
    CWE-310

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application fortinet forticlient ≤ 4.3.3.445 Yes
Operating System microsoft windows * No
Application fortinet forticlient_lite ≤ 4.3.3.445 Yes
Operating System microsoft windows * No
Application fortinet forticlient_ssl_vpn ≤ 4.0.2012 Yes
Operating System linux linux_kernel * No
Application fortinet forticlient ≤ 4.0.2 Yes
Operating System apple mac_os_x * No
Application fortinet forticlient_lite ≤ 2.0 Yes
Operating System google android * No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For fortinet's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.