VAR-200510-0204

Vulnerability from variot - Updated: 2025-04-03 22:10

Multiple interpretation error in unspecified versions of Fortinet Antivirus allows remote attackers to bypass virus detection via a malicious executable in a specially crafted RAR file with malformed central and local headers, which can still be opened by products such as Winrar and PowerZip, even though they are rejected as corrupted by Winzip and BitZipper. Fortinet Antivirus is prone to a security bypass vulnerability. Fortinet Antivirus is an antivirus software designed by Fortinet Company using signature database and heuristic scanning engine. Fortinet Antivirus unidentified version has multiple interpretation errors. The specially crafted RAR file contains malformed central and partial headers. Although it is considered damaged by Winzip and BitZipper and rejected, it can still be opened by products such as Winrar and PowerZip

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.