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T1068 Exploitation for Privilege Escalation

Adversaries may exploit software vulnerabilities in an attempt to elevate privileges. Exploitation of a software vulnerability occurs when an adversary takes advantage of a programming error in a program, service, or within the operating system software or kernel itself to execute adversary-controlled code. Security constructs such as permission levels will often hinder access to information and use of certain techniques, so adversaries will likely need to perform privilege escalation to include use of software exploitation to circumvent those restrictions.

When initially gaining access to a system, an adversary may be operating within a lower privileged process which will prevent them from accessing certain resources on the system. Vulnerabilities may exist, usually in operating system components and software commonly running at higher permissions, that can be exploited to gain higher levels of access on the system. This could enable someone to move from unprivileged or user level permissions to SYSTEM or root permissions depending on the component that is vulnerable. This could also enable an adversary to move from a virtualized environment, such as within a virtual machine or container, onto the underlying host. This may be a necessary step for an adversary compromising an endpoint system that has been properly configured and limits other privilege escalation methods.

Adversaries may bring a signed vulnerable driver onto a compromised machine so that they can exploit the vulnerability to execute code in kernel mode. This process is sometimes referred to as Bring Your Own Vulnerable Driver (BYOVD).13 Adversaries may include the vulnerable driver with files delivered during Initial Access or download it to a compromised system via Ingress Tool Transfer or Lateral Tool Transfer.

Item Value
ID T1068
Sub-techniques
Tactics TA0004
Platforms Containers, Linux, Windows, macOS
Permissions required User
Version 1.5
Created 31 May 2017
Last Modified 07 April 2023

Procedure Examples

ID Name Description
G0007 APT28 APT28 has exploited CVE-2014-4076, CVE-2015-2387, CVE-2015-1701, CVE-2017-0263 to escalate privileges.282930
G0016 APT29 APT29 has exploited CVE-2021-36934 to escalate privileges on a compromised host.32
G0050 APT32 APT32 has used CVE-2016-7255 to escalate privileges.43
G0064 APT33 APT33 has used a publicly available exploit for CVE-2017-0213 to escalate privileges on a local system.27
G1002 BITTER BITTER has exploited CVE-2021-1732 for privilege escalation.4142
C0017 C0017 During C0017, APT41 abused named pipe impersonation for privilege escalation.44
S0484 Carberp Carberp has exploited multiple Windows vulnerabilities (CVE-2010-2743, CVE-2010-3338, CVE-2010-4398, CVE-2008-1084) and a .NET Runtime Optimization vulnerability for privilege escalation.1718
G0080 Cobalt Group Cobalt Group has used exploits to increase their levels of rights and privileges.38
S0154 Cobalt Strike Cobalt Strike can exploit vulnerabilities such as MS14-058.910
S0050 CosmicDuke CosmicDuke attempts to exploit privilege escalation vulnerabilities CVE-2010-0232 or CVE-2010-4398.11
S0363 Empire Empire can exploit vulnerabilities such as MS16-032 and MS16-135.7
G0037 FIN6 FIN6 has used tools to exploit Windows vulnerabilities in order to escalate privileges. The tools targeted CVE-2013-3660, CVE-2011-2005, and CVE-2010-4398, all of which could allow local users to access kernel-level privileges.40
G0061 FIN8 FIN8 has exploited the CVE-2016-0167 local vulnerability.3536
S0601 Hildegard Hildegard has used the BOtB tool which exploits CVE-2019-5736.23
S0260 InvisiMole InvisiMole has exploited CVE-2007-5633 vulnerability in the speedfan.sys driver to obtain kernel mode privileges.1
S0044 JHUHUGIT JHUHUGIT has exploited CVE-2015-1701 and CVE-2015-2387 to escalate privileges.1516
G1004 LAPSUS$ LAPSUS$ has exploited unpatched vulnerabilities on internally accessible servers including JIRA, GitLab, and Confluence for privilege escalation.33
S0664 Pandora Pandora can use CVE-2017-15303 to bypass Windows Driver Signature Enforcement (DSE) protection and load its driver.14
G0068 PLATINUM PLATINUM has leveraged a zero-day vulnerability to escalate privileges.34
S0378 PoshC2 PoshC2 contains modules for local privilege escalation exploits such as CVE-2016-9192 and CVE-2016-0099.8
S0654 ProLock ProLock can use CVE-2019-0859 to escalate privileges on a compromised host.24
S0125 Remsec Remsec has a plugin to drop and execute vulnerable Outpost Sandbox or avast! Virtualization drivers in order to gain kernel mode privileges.21
S0623 Siloscape Siloscape has leveraged a vulnerability in Windows containers to perform an Escape to Host.12
S0603 Stuxnet Stuxnet used MS10-073 and an undisclosed Task Scheduler vulnerability to escalate privileges on local Windows machines.22
G0027 Threat Group-3390 Threat Group-3390 has used CVE-2014-6324 and CVE-2017-0213 to escalate privileges.2526
G0131 Tonto Team Tonto Team has exploited CVE-2019-0803 and MS16-032 to escalate privileges.37
G0010 Turla Turla has exploited vulnerabilities in the VBoxDrv.sys driver to obtain kernel mode privileges.3
G0107 Whitefly Whitefly has used an open-source tool to exploit a known Windows privilege escalation vulnerability (CVE-2016-0051) on unpatched computers.31
S0176 Wingbird Wingbird exploits CVE-2016-4117 to allow an executable to gain escalated privileges.20
S0658 XCSSET XCSSET has used a zero-day exploit in the ssh launchdaemon to elevate privileges and bypass SIP.19
G0128 ZIRCONIUM ZIRCONIUM has exploited CVE-2017-0005 for local privilege escalation.39
S0672 Zox Zox has the ability to leverage local and remote exploits to escalate privileges.13

Mitigations

ID Mitigation Description
M1048 Application Isolation and Sandboxing Make it difficult for adversaries to advance their operation through exploitation of undiscovered or unpatched vulnerabilities by using sandboxing. Other types of virtualization and application microsegmentation may also mitigate the impact of some types of exploitation. Risks of additional exploits and weaknesses in these systems may still exist. 6
M1038 Execution Prevention Consider blocking the execution of known vulnerable drivers that adversaries may exploit to execute code in kernel mode. Validate driver block rules in audit mode to ensure stability prior to production deployment.2
M1050 Exploit Protection Security applications that look for behavior used during exploitation such as Windows Defender Exploit Guard (WDEG) and the Enhanced Mitigation Experience Toolkit (EMET) can be used to mitigate some exploitation behavior. 4 Control flow integrity checking is another way to potentially identify and stop a software exploit from occurring. 5 Many of these protections depend on the architecture and target application binary for compatibility and may not work for software components targeted for privilege escalation.
M1019 Threat Intelligence Program Develop a robust cyber threat intelligence capability to determine what types and levels of threat may use software exploits and 0-days against a particular organization.
M1051 Update Software Update software regularly by employing patch management for internal enterprise endpoints and servers.

Detection

ID Data Source Data Component
DS0027 Driver Driver Load
DS0009 Process Process Creation

References

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