BitZipper Archive Extraction Directory traversal

Type securityvulns
Reporter Securityvulns
Modified 2006-05-23T00:00:00


BitZipper Archive Extraction Directory traversal BitZipper is an advanced data compression tool for Windows that enables you to unzip 18 different compression and encoding formats with superior ease-of-use. Create 8 different types of compressed files

Credit: The information has been provided by Hamid Ebadi admin[at]hamid[dot]ir. The original article can be found at :

Vulnerable Systems: BitZipper4.1.2 (and below) [ 3.2 , 3.2.1 , 3.3 ,3.4 ,3.4.1,4.0 ,4.1,4.1 Service Release 1 ]

Detail :

The vulnerability is caused due to an input validation error when extracting files compressed with RAR (.rar) or TAR (.tar) or ZIP (.zip) or TAR.GZ (tar.gz) or GZ (.gz) or JAR(.jar) This makes it possible to have files extracted to arbitrary locations outside the specified directory using the "../" directory traversal sequence.

Solution: Do not extract untrusted RAR and TAR and JAR and GZ and ZIP and TAR.GZ files. To reduce the risk, never extract files as an administrative user.

harmless exploit: use HEAP [Hamid Evil Archive Pack] you can download it from Hamid Network Security Team :

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