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TUCoPS :: Web :: PHP :: bx1186.htm

PHP <= 5.2.5 Safe Mode Bypass



PHP <= 5.2.5 Safe Mode Bypass
PHP <= 5.2.5 Safe Mode Bypass



########################## WwW.BugReport.ir 
#########################################
#
#      AmnPardaz Security Research & Penetration Testing Group
#
# Title: PHP <= 5.2.5 Safe Mode Bypass
# Vendor: http://www.php.net 
# Vulnerable Function: tempnam()
# Vulnerable Version: tested on 5.2.5 , 5.2.4 (prior versions also may  
be affected)
# Platform : any
# Exploitation: Local
# Exploit: Available
# Fix Available: No!
###################################################################################

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- Description:
####################

"PHP is a widely-used general-purpose scripting language that is  
especially suited for Web development and can be embedded into HTML."

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- Vulnerability:
####################

+--> Safe Mode Bypass
string tempnam ( string dir, string prefix )
Creates a file with a unique filename in the specified directory.
Quick review from the source shows that there is open_basedir check but not
Safe mode!
/main/php_open_temporary_file.c
See the related exploit for more details

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- POC
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http://www.bugreport.ir/?/22/exploit 
Original advisory: http://www.bugreport.ir/?/22 

####################
- Credit :
####################
AmnPardaz Security Research & Penetration Testing Group
Contact: admin[4t}bugreport{d0t]ir
WwW.BugReport.ir 
WwW.AmnPardaz.com 





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