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Glype proxy local address filter bypass

Description

------------------------------------------------------------------------ Glype proxy local address filter bypass ------------------------------------------------------------------------ Securify, September 2014 ------------------------------------------------------------------------ Abstract ------------------------------------------------------------------------ A vulnerability has been identified in the Glype web-based proxy. Glype has a filter to disallow users from surfing to local addresses, to prevents users from attacking the local server/network Glype is running on. The filter can easily be bypassed by using IPs in decimal form. ------------------------------------------------------------------------ Affected versions ------------------------------------------------------------------------ This issue has been identified in Glype 1.4.9. Older version are most likely affected as well. ------------------------------------------------------------------------ Fix ------------------------------------------------------------------------ Glype was informed and a fixed version (1.4.10) is now available at www.glype.com ------------------------------------------------------------------------ Details ------------------------------------------------------------------------ http://www.securify.nl/advisory/SFY20140902/glype_proxy_local_address_filter_bypass.html