Vulnerability-Lookup

VAR-201306-0360

Vulnerability from variot - Updated: 2025-04-11 23:07

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. Fortinet FortiClient VPN client is prone to a security-bypass vulnerability because the application fails to properly validate SSL certificates from the server. An attacker can exploit this issue to perform man-in-the-middle attacks or impersonate trusted servers, which will aid in further attacks. Fortinet FortiClient, FortiClient Lite and FortiClient SSL VPN are all products of Fortinet. FortiClient is a suite of software solutions that provide security for endpoints, providing features such as IPsec and SSL encryption, WAN optimization, endpoint compliance, and two-factor authentication. FortiClient Lite is a free antivirus software that offers malware detection, real-time protection, parental controls, web filtering, and more. FortiClient SSL VPN is an integrated software in FortiClient products, which mainly provides virtual private network technology. Vulnerabilities exist in the following versions: Windows-based FortiClient prior to 4.3.5.472, Mac OS X-based FortiClient prior to 4.0.3.134, Android-based FortiClient prior to 4.0, Windows-based FortiClient Lite 4.3.4.461 Previous versions, FortiClient Lite 2.0 to 2.0.0223 based on the Android platform, versions earlier than FortiClient SSL VPN 4.0.2258 based on the Linux platform

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CVE-2013-4669 (GCVE-0-2013-4669)

Vulnerability from cvelistv5 – Published: 2013-06-25 14:00 – Updated: 2024-09-17 00:31

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2193 records in the last 180 days details

References

4 references

URL	Tags
http://www.fortiguard.com/advisory/Potential-Man-…	x_refsource_CONFIRM
http://objectif-securite.ch/forticlient_bulletin.php	x_refsource_MISC
http://www.securityfocus.com/bid/59604	vdb-entryx_refsource_BID
http://archives.neohapsis.com/archives/fulldisclo…	mailing-listx_refsource_FULLDISC

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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