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AUSCERT External Security Bulletin Redistribution
Use of a hard-coded cryptographic key to cipher sensitive
data in configuration backup files
20 November 2019
AusCERT Security Bulletin Summary
Operating System: FortiOS
Impact/Access: Access Privileged Data -- Existing Account
CVE Names: CVE-2019-6693
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Use of a hard-coded cryptographic key to cipher sensitive data in configuration backup files
IR Number : FG-IR-19-007
Date : Nov 19, 2019
Risk : 2/5
Impact : Information Disclosure
CVE ID : CVE-2019-6693
Use of a hard-coded cryptographic key to cipher sensitive data in FortiOS
configuration backup file may allow an attacker with access to the backup file
to decipher the sensitive data, via knowledge of the hard-coded key.
The aforementioned sensitive data includes users' passwords (except the
administrator's password), private keys' passphrases and High Availability
password (when set).
5.6.10 and below
6.0.6 and below
In versions 5.6.11, 6.0.7 and 6.2.1 and above, admins can choose to be prompted
for a password, which is then used by FortiOS to encrypt sensitive data in the
configuration file. The following steps enable this option:
#config system global
# set private-data-encryption enable
Please type your private data encryption key (32 hexadecimal numbers):
Please re-enter your private data encryption key (32 hexadecimal numbers)
This CLI option is disabled by default.
Fortinet is very pleased to thank Bart Dopheide (email@example.com)as
well as Independent research team Denis Kolegov, Maxim Gorbunov, Nikita Oleksov
and Anton Nikolaevfor reporting this vulnerability under responsible disclosure
and for helping us make our products more secure.
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