Windows 10의 패치되지 않은 NTFS 제로데이, 파일 보기만으로 하드 드라이브 손상

작성자

Alla Yurchenko

위협 현상금 프로그램 리드

[post-views]

1월 18, 2021 · 2 분 읽기

Windows 10의 패치되지 않은 NTFS 제로데이, 파일 보기만으로 하드 드라이브 손상

정보 보안 분석가 Jonas L 는 NTFS 포맷에 의존하는 하드 드라이브(HD)를 손상시킬 수 있는 Windows 10의 심각한 버그를 발견했습니다. 제로 데이 취약점은 연구자가 2020년 가을부터 주목했음에도 불구하고 수정되지 않은 상태로 남아 있습니다. to it since autumn 2020.

NTFS 취약점 분석

NTFS 제로 데이 취약점은 Windows 10 빌드 1803, 2018년 4월 Windows 10 업데이트에 존재하며, 최신 OS 버전에서도 적용됩니다. 이 결함은 시스템에 대한 관리자 권한이 없는 사용자에 의해 악용될 수 있으므로 이 버그는 치명적입니다.

연구자들의 NTFS 취약점 설명에 따르면, 제로 데이는 한 줄의 명령어로 유발될 수 있습니다. 게다가, 파일을 열거나 특별히 포맷된 아이콘을 보는 것만으로도 HD 손상을 일으킬 수 있습니다. 특히, 버그는 “$i30” Windows NTFS 인덱스 속성과 관련이 있습니다. 사용자가 “$i30” NTFS 속성을 사용하여 명령어를 실행하면 시스템은 즉시 하드 드라이브를 손상시키고 손상된 저장 장치를 복구하는 데 필요한 재시작을 요청합니다. 그러나 자주 손상된 파일은 복구가 어렵고 디스크의 마스터 파일 테이블(MFT)도 손상된 상태로 남아있습니다.

NTFS 제로 데이 악용

취약점은 여러 가지 악용 방법을 상정합니다. 예를 들어, 위협 행위자는 Windows 단축키, ZIP 아카이브 또는 정품 파일의 큰 묶음 등을 통해 악성 NTFS 인덱스 속성 명령을 전달할 수 있습니다. 사용자 디렉토리 내에서 파일을 두 번 클릭하지 않고도 취약점은 악용될 수 있습니다. 따라서 공격 루틴에서 가장 복잡한 작업은 Windows 단축 아이콘 파일을 시스템에 전달하는 것입니다. 위협 행위자는 사용자가 ZIP 아카이브를 추출하거나 파일을 로드하도록 유도하는 설득력 있는 미끼만 만들면 됩니다.

NTFS 취약점 탐지 및 완화

SOC Prime의 위협 사냥 엔지니어 팀은 이 NTFS 제로 데이에 대한 개념 증명(PoC) 익스플로잇을 개발하고, 적극적인 탐지를 위한 Sigma 규칙을 발표했습니다. 공식 패치가 나올 때까지 안전하게 기다리면서, 우리의 위협 탐지 마켓플레이스에서 콘텐츠 항목을 다운로드할 수 있습니다:

https://tdm.socprime.com/tdm/info/kJwEoozBjpwh/O89OAXcBTwmKwLA90ARl/

이 심각한 NTFS 취약점의 탐지를 강화하기 위해 2021년 1월 22일에 우리 위협 바운티 개발자 Furkan Celik이 발표한 새로운 SOC 콘텐츠를 확인하세요:

https://tdm.socprime.com/tdm/info/aRQYhKyh9X9W/sKecKncBR-lx4sDx-iqM/

규칙은 다음 플랫폼에 번역됩니다:

SIEM: Azure Sentinel, ArcSight, QRadar, Splunk, Graylog, Sumo Logic, ELK Stack, RSA NetWitness, LogPoint, Humio.

EDR: Microsoft Defender ATP, Carbon Black

MITRE ATT&CK:

전술: 영향

기술: 데이터 파괴 (T1485)

공식 패치, 공급자의 가능한 완화 조치 및 당사 팀의 추가 탐지 규칙과 관련된 정보를 지속적으로 이 블로그 게시물에 업데이트할 것입니다.

무료 구독 받기 위협 탐지 마켓플레이스에 방문하여 적극적인 공격 탐지를 위한 보다 엄선된 SOC 콘텐츠를 확인하세요. 자체 Sigma 규칙을 작성할 준비가 된 경우, 위협 바운티 프로그램에 참여하여 우리의 위협 사냥 이니셔티브를 강화하세요.

이 기사가 도움이 되었나요?

동료들과 좋아요를 누르고 공유하세요.

SOC Prime의 Detection as Code 플랫폼에 가입하세요 귀하의 비즈니스와 가장 관련 있는 위협에 대한 가시성을 향상시키세요. 시작하고 즉각적인 가치를 창출하기 위해 지금 SOC Prime 전문가와의 미팅을 예약하세요.

무료 가입하기 미팅 예약하기

Name	Descripiton
PHPSESSID	Preserves user session state across page requests. Cookie generated by applications based on the PHP language. This is a general purpose identifier used to maintain user session variables. It is normally a random generated number, how it is used can be specific to the site, but a good example is maintaining a logged-in status for a user between pages.
sp_i	Used to store information about authenticated User.
sp_r	Used to store information about authenticated User.
sp_a	Used to store information about authenticated User.

Name	Descripiton
tuuid	Collects anonymous data related to the user's visits to the website, such as the number of visits, average time spent on the website and what pages have been loaded.
tuuid_last_update	Collects anonymous data related to the user's visits to the website, such as the number of visits, average time spent on the website and what pages have been loaded.
um	Collects anonymous data related to the user's visits to the website, such as the number of visits, average time spent on the website and what pages have been loaded.
umeh	Collects anonymous data related to the user's visits to the website, such as the number of visits, average time spent on the website and what pages have been loaded.
na_sc_x	Used by the social sharing platform AddThis to keep a record of parts of the site that has been visited in order to recommend other parts of the site.
APID	Collects anonymous data related to the user's visits to the website.
IDSYNC	Collects anonymous data related to the user's visits to the website.
_cc_aud	Collects anonymous statistical data related to the user's website visits, such as the number of visits, average time spent on the website and what pages have been loaded. The purpose is to segment the website's users according to factors such as demographics and geographical location, in order to enable media and marketing agencies to structure and understand their target groups to enable customised online advertising.
_cc_cc	Collects anonymous statistical data related to the user's website visits, such as the number of visits, average time spent on the website and what pages have been loaded. The purpose is to segment the website's users according to factors such as demographics and geographical location, in order to enable media and marketing agencies to structure and understand their target groups to enable customised online advertising.
_cc_dc	Collects anonymous statistical data related to the user's website visits, such as the number of visits, average time spent on the website and what pages have been loaded. The purpose is to segment the website's users according to factors such as demographics and geographical location, in order to enable media and marketing agencies to structure and understand their target groups to enable customised online advertising.
_cc_id	Collects anonymous statistical data related to the user's website visits, such as the number of visits, average time spent on the website and what pages have been loaded. The purpose is to segment the website's users according to factors such as demographics and geographical location, in order to enable media and marketing agencies to structure and understand their target groups to enable customised online advertising.
dpm	Via a unique ID that is used for semantic content analysis, the user's navigation on the website is registered and linked to offline data from surveys and similar registrations to display targeted ads.
acs	Collects anonymous data related to the user's visits to the website, such as the number of visits, average time spent on the website and what pages have been loaded, with the purpose of displaying targeted ads.
clid	Collects anonymous data related to the user's visits to the website, such as the number of visits, average time spent on the website and what pages have been loaded, with the purpose of displaying targeted ads.
KRTBCOOKIE_#	Registers a unique ID that identifies the user's device during return visits across websites that use the same ad network. The ID is used to allow targeted ads.
PUBMDCID	Registers a unique ID that identifies the user's device during return visits across websites that use the same ad network. The ID is used to allow targeted ads.
PugT	Registers a unique ID that identifies the user's device during return visits across websites that use the same ad network. The ID is used to allow targeted ads.
ssi	Registers a unique ID that identifies a returning user's device. The ID is used for targeted ads.
_tmid	Registers a unique ID that identifies the user's device upon return visits. The ID is used to target ads in video clips.
wam-sync	Used by the advertising platform Weborama to determine the visitor's interests based on pages visits, content clicked and other actions on the website.
wui	Used by the advertising platform Weborama to determine the visitor's interests based on pages visits, content clicked and other actions on the website.
AFFICHE_W	Used by the advertising platform Weborama to determine the visitor's interests based on pages visits, content clicked and other actions on the website.
B	Collects anonymous data related to the user's website visits, such as the number of visits, average time spent on the website and what pages have been loaded. The registered data is used to categorise the users' interest and demographical profiles with the purpose of customising the website content depending on the visitor.
1P_JAR	These cookies are used to gather website statistics, and track conversion rates.
APISID	Google set a number of cookies on any page that includes a Google reCAPTCHA. While we have no control over the cookies set by Google, they appear to include a mixture of pieces of information to measure the number and behaviour of Google reCAPTCHA users.
HSID	Google set a number of cookies on any page that includes a Google reCAPTCHA. While we have no control over the cookies set by Google, they appear to include a mixture of pieces of information to measure the number and behaviour of Google reCAPTCHA users.
NID	Google set a number of cookies on any page that includes a Google reCAPTCHA. While we have no control over the cookies set by Google, they appear to include a mixture of pieces of information to measure the number and behaviour of Google reCAPTCHA users.
SAPISID	Google set a number of cookies on any page that includes a Google reCAPTCHA. While we have no control over the cookies set by Google, they appear to include a mixture of pieces of information to measure the number and behaviour of Google reCAPTCHA users.
SID	Google set a number of cookies on any page that includes a Google reCAPTCHA. While we have no control over the cookies set by Google, they appear to include a mixture of pieces of information to measure the number and behaviour of Google reCAPTCHA users.
SIDCC	Security cookie to protect users data from unauthorised access.
SSID	Google set a number of cookies on any page that includes a Google reCAPTCHA. While we have no control over the cookies set by Google, they appear to include a mixture of pieces of information to measure the number and behaviour of Google reCAPTCHA users.
__utmx	This cookie is associated with Google Website Optimizer, a tool designed to help site owners improve their wbesites. It is used to distinguish between two varaitions a webpage that might be shown to a visitor as part of an A/B split test. This helps site owners to detemine which version of a page performs better, and therefore helps to improve the website.
__utmxx	This cookie is associated with Google Website Optimizer, a tool designed to help site owners improve their wbesites. It is used to distinguish between two varaitions a webpage that might be shown to a visitor as part of an A/B split test. This helps site owners to detemine which version of a page performs better, and therefore helps to improve the website.

Name	Descripiton
_hjid	Hotjar cookie. This cookie is set when the customer first lands on a page with the Hotjar script. It is used to persist the random user ID, unique to that site on the browser. This ensures that behavior in subsequent visits to the same site will be attributed to the same user ID.
_hjIncludedInSample	This cookie is associated with web analytics functionality and services from Hot Jar, a Malta based company. It uniquely identifies a visitor during a single browser session and indicates they are included in an audience sample.
intercom-id-[xxx]	This cookie is used by Intercom as a session so that users can continue a chat as they move through the site.
intercom-session-[xxx]	Used to keeping track of sessions and remember logins and conversations.
demdex	Via a unique ID that is used for semantic content analysis, the user's navigation on the website is registered and linked to offline data from surveys and similar registrations to display targeted ads.
CookieConsent	Stores the user's cookie consent state for the current domain.
__cfduid	Used by the content network, Cloudflare, to identify trusted web traffic.
ss	These cookies enable the website to provide enhanced functionality and personalisation . They may be set by us or by third party providers whose services we have added to our pages. These services may include the Live Chat facility, Contact Us form(s), the Product Quotation forms and submission process, and the Email Newsletter sign up functionality .

Name	Descripiton
_ga	This cookie name is asssociated with Google Universal Analytics - which is a significant update to Google's more commonly used analytics service. This cookie is used to distinguish unique users by assigning a randomly generated number as a client identifier. It is included in each page. Registers a unique ID that is used to generate statistical data on how the visitor uses the website. request in a site and used to calculate visitor, session and campaign data for the sites analytics reports. By default it is set to expire after 2 years, although this is customisable by website owners.
_gat	Used by Google Analytics to throttle request rate. This cookie name is associated with Google Universal Analytics, according to documentation it is used to throttle the request rate - limiting the collection of data on high traffic sites. It expires after 10 minutes.
_gid	This cookie name is asssociated with Google Universal Analytics. This appears to be a new cookie and as of Spring 2017 no information is available from Google. It appears to store and update a unique value for each page visited. Registers a unique ID that is used to generate statistical data on how the visitor uses the website.
IDE	Used by Google DoubleClick to register and report the website user's actions after viewing or clicking one of the advertiser's ads with the purpose of measuring the efficacy of an ad and to present targeted ads to the user.
r/collect	Used by Google DoubleClick to register and report the website user's actions after viewing or clicking one of the advertiser's ads with the purpose of measuring the efficacy of an ad and to present targeted ads to the user.
test_cookie	Used to check if the user's browser supports cookies.
collect	Used to send data to Google Analytics about the visitor's device and behaviour. Tracks the visitor across devices and marketing channels.
ads/user-lists/#	These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites.
c	Registers anonymised user data, such as IP address, geographical location, visited websites, and what ads the user has clicked, with the purpose of optimising ad display based on the user's movement on websites that use the same ad network.
khaos	Registers anonymised user data, such as IP address, geographical location, visited websites, and what ads the user has clicked, with the purpose of optimising ad display based on the user's movement on websites that use the same ad network.
put_#	Registers anonymised user data, such as IP address, geographical location, visited websites, and what ads the user has clicked, with the purpose of optimising ad display based on the user's movement on websites that use the same ad network.
rpb	Registers anonymised user data, such as IP address, geographical location, visited websites, and what ads the user has clicked, with the purpose of optimising ad display based on the user's movement on websites that use the same ad network.
rpx	Registers anonymised user data, such as IP address, geographical location, visited websites, and what ads the user has clicked, with the purpose of optimising ad display based on the user's movement on websites that use the same ad network.
tap.php	Registers anonymised user data, such as IP address, geographical location, visited websites, and what ads the user has clicked, with the purpose of optimising ad display based on the user's movement on websites that use the same ad network.

Windows 10의 패치되지 않은 NTFS 제로데이, 파일 보기만으로 하드 드라이브 손상

NTFS 취약점 분석

NTFS 제로 데이 악용

NTFS 취약점 탐지 및 완화

목차

이 기사가 도움이 되었나요?

사이버 방어를 강화하세요 위협 탐지 마켓플레이스

Windows 10의 패치되지 않은 NTFS 제로데이, 파일 보기만으로 하드 드라이브 손상

NTFS 취약점 분석

NTFS 제로 데이 악용

NTFS 취약점 탐지 및 완화

#ez_toc_widget_sticky-2 .ez-toc-widget-sticky-container ul.ez-toc-widget-sticky-list li.active{ background-color: #ededed; } 목차

이 기사가 도움이 되었나요?

관련 게시물

사이버 방어를 강화하세요 위협 탐지 마켓플레이스

목차