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Spoofed file extensions via a crafted filename containing Unicode character in Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4 and SeaMonkey before 2.0

oval:org.mitre.oval:def:6541

Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4 and SeaMonkey before 2.0 does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename which allows remote attackers to spoof file extensions via a crafted filename as demonstrated by displaying a non-executable extension for an executable file.

Family:
windows
Status:
ACCEPTED
Platform(s):
  • Microsoft Windows Vista
  • Microsoft Windows XP
  • Microsoft Windows 7
  • Microsoft Windows 2000
  • Microsoft Windows Server 2003
Class:
vulnerability
Reference(s):
  • CVE-2009-3376
Product(s):
  • Mozilla Firefox
  • Mozilla Seamonkey