VAR-200512-0013
Vulnerability from variot - Updated: 2025-04-03 22:10The FTP component in FortiGate 2.8 running FortiOS 2.8MR10 and v3beta, and other versions before 3.0 MR1, allows remote attackers to bypass the Fortinet FTP anti-virus engine by sending a STOR command and uploading a file before the FTP server response has been sent, as demonstrated using LFTP. Fortinet FortiGate is reportedly prone to a vulnerability that allows an attacker to bypass antivirus protection. This issue is said to occur when files are transferred using the FTP protocol under certain conditions. FortiGate devices running FortiOS v2.8MR10 and v3beta are affected by this issue. Other versions may also be vulnerable. Fortinet FortiGate is a network security platform developed by Fortinet. The platform provides functions such as firewall, antivirus and intrusion prevention (IPS), application control, antispam, wireless controller and WAN acceleration. The FTP component of Fortinet FortiGate cannot properly filter and check files.
TITLE: FortiGate URL Filter and Virus Scanning Bypass Vulnerabilities
SECUNIA ADVISORY ID: SA18844
VERIFY ADVISORY: http://secunia.com/advisories/18844/
CRITICAL: Less critical
IMPACT: Security Bypass
WHERE:
From local network
OPERATING SYSTEM: Fortinet FortiOS (FortiGate) 2.x http://secunia.com/product/2289/ Fortinet FortiOS (FortiGate) 3.x http://secunia.com/product/6802/
DESCRIPTION: Mathieu Dessus has reported two vulnerabilities in FortiGate, which can be exploited by malicious people and users to bypass certain security restrictions.
1) The URL blocking functionality can be bypassed by specially-crafted HTTP requests that are terminated by the CR character instead of the CRLF characters. It is also possible to bypass the functionality via a HTTP/1.0 request with no host header.
The vulnerability has been reported in FortiOS v2.8MR10 and v3beta.
The vulnerability has been reported in FortiOS v2.8MR10 and v3beta.
SOLUTION: Do not rely on URL blocking as the only means of blocking users' access. Desktop-based on-access virus scanners should be used together with server-based virus scanners.
PROVIDED AND/OR DISCOVERED BY: Mathieu Dessus
ORIGINAL ADVISORY: http://lists.grok.org.uk/pipermail/full-disclosure/2006-February/042139.html http://lists.grok.org.uk/pipermail/full-disclosure/2006-February/042140.html
About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities.
Subscribe: http://secunia.com/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/
Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor.
Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org
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"data": "lack of information",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-200512-986"
}
],
"trust": 0.6
}
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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
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.
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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.