ID CVE-2017-0358
Summary Jann Horn of Google Project Zero discovered that NTFS-3G, a read-write NTFS driver for FUSE, does not scrub the environment before executing modprobe with elevated privileges. A local user can take advantage of this flaw for local root privilege escalation.
References
Vulnerable Configurations
  • cpe:2.3:a:tuxera:ntfs-3g:2016.2.22
    cpe:2.3:a:tuxera:ntfs-3g:2016.2.22
  • Debian Linux 8.0 (Jessie)
    cpe:2.3:o:debian:debian_linux:8.0
CVSS
Base: 7.2
Impact:
Exploitability:
CWE CWE-264
CAPEC
  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
exploit-db via4
  • file exploits/linux/local/41356.txt
    id EDB-ID:41356
    last seen 2018-11-30
    modified 2017-02-14
    platform linux
    port
    published 2017-02-14
    reporter Exploit-DB
    source https://www.exploit-db.com/download/41356
    title ntfs-3g - Unsanitized modprobe Environment Privilege Escalation
    type local
  • description ntfs-3g (Debian 9) - Privilege Escalation. CVE-2017-0358. Local exploit for Linux platform
    file exploits/linux/local/41240.sh
    id EDB-ID:41240
    last seen 2017-02-04
    modified 2017-02-03
    platform linux
    port
    published 2017-02-03
    reporter Exploit-DB
    source https://www.exploit-db.com/download/41240/
    title ntfs-3g (Debian 9) - Privilege Escalation
    type local
metasploit via4
description ntfs-3g mount helper in Ubuntu 16.04, 16.10, Debian 7, 8, and possibly 9 does not properly sanitize the environment when executing modprobe. This can be abused to load a kernel module and execute a binary payload as the root user.
id MSF:EXPLOIT/LINUX/LOCAL/NTFS3G_PRIV_ESC
last seen 2019-03-05
modified 2018-10-10
published 2017-02-26
reliability Good
reporter Rapid7
source https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/ntfs3g_priv_esc.rb
title Debian/Ubuntu ntfs-3g Local Privilege Escalation
nessus via4
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201702-10.NASL
    description The remote host is affected by the vulnerability described in GLSA-201702-10 (NTFS-3G: Privilege escalation) The NTFS-3G driver does not properly clear environment variables before invoking mount or umount. This flaw is similar to the vulnerability described in “GLSA-201701-19” and “GLSA-201603-04” referenced below but is now implemented in the NTFS-3G driver itself. Impact : A local user could gain root privileges. Workaround : There is no known workaround at this time. However, on Gentoo when the “suid” USE flag is not set (which is the default) an attacker cannot exploit the flaw.
    last seen 2019-02-21
    modified 2018-09-04
    plugin id 97253
    published 2017-02-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=97253
    title GLSA-201702-10 : NTFS-3G: Privilege escalation
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-3780.NASL
    description Jann Horn of Google Project Zero discovered that NTFS-3G, a read-write NTFS driver for FUSE, does not scrub the environment before executing modprobe with elevated privileges. A local user can take advantage of this flaw for local root privilege escalation.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 96933
    published 2017-02-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96933
    title Debian DSA-3780-1 : ntfs-3g - security update
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-815.NASL
    description Jann Horn of Google Project Zero discovered that NTFS-3G, a read-write NTFS driver for FUSE, does not scrub the environment before executing modprobe with elevated privileges. A local user can take advantage of this flaw for local root privilege escalation. For Debian 7 'Wheezy', these problems have been fixed in version 1:2012.1.15AR.5-2.1+deb7u3. We recommend that you upgrade your ntfs-3g packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-08-31
    plugin id 96963
    published 2017-02-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96963
    title Debian DLA-815-1 : ntfs-3g security update
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-3587-1.NASL
    description This update for ntfs-3g_ntfsprogs fixes the following issues : CVE-2017-0358: Missing sanitization of the environment during a call to modprobe allowed local users to escalate fo root privilege (bsc#1022500) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 118587
    published 2018-11-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118587
    title SUSE SLED12 Security Update : ntfs-3g_ntfsprogs (SUSE-SU-2018:3587-1)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3182-1.NASL
    description Jann Horn discovered that NTFS-3G incorrectly filtered environment variables when using the modprobe utility. A local attacker could possibly use this issue to load arbitrary kernel modules. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-01
    plugin id 96951
    published 2017-02-02
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=96951
    title Ubuntu 16.04 LTS / 16.10 : ntfs-3g vulnerability (USN-3182-1)
  • NASL family SuSE Local Security Checks
    NASL id OPENSUSE-2018-1376.NASL
    description This update for ntfs-3g_ntfsprogs fixes the following issues : - CVE-2017-0358: Missing sanitization of the environment during a call to modprobe allowed local users to escalate fo root privilege (bsc#1022500) This update was imported from the SUSE:SLE-12:Update update project.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 118874
    published 2018-11-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118874
    title openSUSE Security Update : ntfs-3g_ntfsprogs (openSUSE-2018-1376)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_SU-2018-3587-2.NASL
    description This update for ntfs-3g_ntfsprogs fixes the following issues : CVE-2017-0358: Missing sanitization of the environment during a call to modprobe allowed local users to escalate fo root privilege (bsc#1022500) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-14
    plugin id 119672
    published 2018-12-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=119672
    title SUSE SLED12 Security Update : ntfs-3g_ntfsprogs (SUSE-SU-2018:3587-2)
packetstorm via4
data source https://packetstormsecurity.com/files/download/141882/ntfs3g_priv_esc.rb.txt
id PACKETSTORM:141882
last seen 2017-04-10
published 2017-04-04
reporter h00die
source https://packetstormsecurity.com/files/141882/Debian-Ubuntu-ntfs-3g-Local-Privilege-Escalation.html
title Debian/Ubuntu ntfs-3g Local Privilege Escalation
refmap via4
bid 95987
debian DSA-3780
gentoo GLSA-201702-10
mlist
  • [oss-security] 20170201 CVE-2017-0358 ntfs-3g: modprobe influence vulnerability via environment variables
  • [oss-security] 20170203 Re: CVE-2017-0358 ntfs-3g: modprobe influence vulnerability via environment variables
Last major update 16-04-2018 - 05:58
Published 13-04-2018 - 11:29
Last modified 17-12-2018 - 08:29
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