Vulnerability CVE-2005-3381


Published: 2005-10-30   Modified: 2012-02-12

Description:
Multiple interpretation error in Ukrainian National Antivirus (UNA) 1.83.2.16 with kernel 265 allows remote attackers to bypass virus scanning via a file such as BAT, HTML, and EML with an "MZ" magic byte sequence which is normally associated with EXE, which causes the file to be treated as a safe type that could still be executed as a dangerous file type by applications on the end system, as demonstrated by a "triple headed" program that contains EXE, EML, and HTML content, aka the "magic byte bug."

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Ukranian national antivirus -> UNA 

 References:
http://www.securityfocus.com/bid/15189
http://www.securityelf.org/updmagic.html
http://www.securityelf.org/magicbyteadv.html
http://www.securityelf.org/magicbyte.html
http://marc.theaimsgroup.com/?l=bugtraq&m=113026417802703&w=2

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