- SAP DOWNLOAD MANAGER SERIAL NUMBER
- SAP DOWNLOAD MANAGER SOFTWARE
- SAP DOWNLOAD MANAGER CODE
- SAP DOWNLOAD MANAGER PASSWORD
- SAP DOWNLOAD MANAGER LICENSE
Taken from def parse_java(f): h = lambda s: ' '.join('%.2X' % ord(x) for x in s) # format as hex p = lambda s: sum(ord(x)*256**i for i, x in enumerate(reversed(s))) # parse integer magic = f.read(2) assert magic = '\xAC\圎D', h(magic) # STREAM_MAGIC assert p(f.read(2)) = 5 # STREAM_VERSION handles = def parse_obj(): b = f.read(1) if not b: raise StopIteration # not necessarily the best thing to throw here. # = # Standard imports from sys import platform from struct import pack, unpack from optparse import OptionParser from subprocess import check_output # p圜rypto import try: from Crypto.Cipher import AES except ImportError: AES = None # Java serialization decoding.
SAP DOWNLOAD MANAGER LICENSE
See the # GNU General Public License for more details. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SAP DOWNLOAD MANAGER SOFTWARE
# This program is free software you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation either version 2 # of the License, or (at your option) any later version. The following python script can be used as a proof of concept for retrieving the stored values from a configuration file: #!/usr/bin/env python # = # pysap - Python library for crafting SAP's network protocols packets # Copyright (C) 2012-2016 by Martin Gallo, Core Security # The library was designed and developed by Martin Gallo from the Security # Consulting Services team of Core Security.
SAP DOWNLOAD MANAGER CODE
The code that handles the encryption/decryption it's inside the program's "StringWrapper" class.Īn attacker who manages to get access to a user's configuration file might be able to obtain the stored proxy password.
SAP DOWNLOAD MANAGER SERIAL NUMBER
On Windows and MacOS systems, the key is composed by the computer's BIOS serial number concatenated with a fixed key hard-coded in the program's code, up to 16 bytes.
SAP DOWNLOAD MANAGER PASSWORD
However, other sensitive values, such as the user's proxy password are stored encrypted.Įncryption is performed using a different mechanism according to the platform where the program is run: User's SAP Marketplace password is not stored in the configuration file since version 2.1.142 (see SAP Security Note 2235412 ). The program implemented encrypted storage of sensitive values since version 2.1.140a (see SAP Security Note 2074276 ). Configuration settings are stored in a Java HashMap object, which is serialized using Java's standard mechanism before being read from the configuration file. This program stores the user's settings in a configuration file. SAP Download Manager is a Java application offered by SAP that allows downloading software packages and support notes. Technical Description / Proof of Concept Code The publication of this advisory was coordinated by Joaquín Rodríguez Varela from Core Advisories Team. This vulnerability was discovered and researched by Martin Gallo from Core Security Consulting Services. Īn updated version of SAP Download Manager can be found in their website.
It can be accessed by SAP clients in their Support Portal. SAP published the following Security Note: Vendor Information, Solutions and Workarounds Other products and versions might be affected, but they were not tested. SAP Download Manager version up to 2.1.142 (released in October 2015).Sensitive values, such as the proxy username and password if set, are stored encrypted using a fixed static key.
Vulnerability InformationĬlass: Storing Passwords in a Recoverable Format ĬVE Name: CVE-2016-3685, CVE-2016-3684 3.
Title: SAP Download Manager Password Weak Encryption
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