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MiniWeb HTTP Server Buffer Overflow and Directory Traversal
Secunia Advisory: SA28512
Release Date: 2008-01-16
Last Update: 2008-02-04
Popularity: 4,849 views

Critical:
Highly critical
Impact: Exposure of system information
Exposure of sensitive information
DoS
System access
Where: From remote
Solution Status: Unpatched

Software:MiniWeb HTTP Server 0.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Hamid Ebadi has discovered two vulnerabilities in MiniWeb HTTP Server, which can be exploited by malicious people to disclose sensitive information, to cause a DoS (Denial of Service), or to potentially compromise a vulnerable system.

1) A boundary error exists within the "_mwProcessReadSocket()" function in http.c. This can be exploited to cause a heap-based buffer overflow via a URL that is 3600-4000 characters long.

Successful exploitation of this vulnerability allows performing a DoS (Denial of Service) or the potential execution of arbitrary code.

2) Input passed in the URL to the "mwGetLocalFileName()" function in http.c is not properly sanitised before being used. This can be exploited to display arbitrary files with directory traversal attacks of the form ".%2e/.%2e/" or "%2e%2e/%2e%2e/".

The vulnerabilities are confirmed in version 0.8.19. Other versions may also be affected.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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