Technical Description

Multiple vulnerabilities have been identified in MiniWeb HTTP Server, which could be exploited by remote attackers to disclose sensitive information, cause a denial of service or compromise a vulnerable web server.

The first issue is caused by an input validation error in the "mwGetLocalFileName()" [http.c] function when processing requests containing encoded directory and file names, which could be exploited to conduct directory traversal attacks and gain unauthorized read access to arbitrary files.

The second vulnerability is caused by a buffer overflow error in the "_mwProcessReadSocket()" [http.c] function when processing overly long requests, which could be exploited by remote attackers to crash an affected server or execute arbitrary code.

Affected Products

MiniWeb HTTP Server version 0.8.19 and prior

Solution

VUPEN Security is not aware of any vendor-supplied patch.

References

http://www.vupen.com/english/advisories/2008/0176
http://www.bugtraq.ir/adv/miniweb_english.pdf

Credits

Vulnerabilities reported by Hamid Ebadi.

ChangeLog

2008-01-17 : Initial release

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