CVE-2017-11826

7.8

HIGH

Microsoft Office Remote Code Execution Vulnerabili - [Actively Exploited]

Description

Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.

INFO

Published Date :

Oct. 13, 2017, 1:29 p.m.

Last Modified :

July 16, 2024, 5:25 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8

CISA Notification

CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Due Date: Mar 24, 2022

Alert Date: Mar 03, 2022 | 931 days ago

Description :

A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user.

Required Action :

Apply updates per vendor instructions.

Public PoC/Exploit Available at Github

CVE-2017-11826 has a 7 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2017-11826 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product
1	Microsoft	sharepoint_enterprise_server
2	Microsoft	office
3	Microsoft	word
4	Microsoft	word_viewer
5	Microsoft	sharepoint_server
6	Microsoft	office_web_apps
7	Microsoft	office_online_server
8	Microsoft	office_word_viewer
9	Microsoft	office_compatibility_pack
10	Microsoft	office_web_apps_server
11	Microsoft	web_applications

: Total Affected Vendor : 1 | Products : 11

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-11826.

URL	Resource
http://www.securityfocus.com/bid/101219	Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039541	Broken Link Third Party Advisory VDB Entry
https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html	Exploit
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826	Patch Vendor Advisory
https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/	Broken Link Technical Description Third Party Advisory
https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/	Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Ostorlab/KEV

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 1 week, 5 days ago

516 stars 32 fork 32 watcher

Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1181 different CVEs too.

qiantu88/office-cve

None

Visual Basic

Updated: 1 year, 11 months ago

6 stars 2 fork 2 watcher

Born at : Jan. 8, 2019, 12:48 p.m. This repo has been linked 18 different CVEs too.

abhishek283/AmexCodeChallange

HI,

Python

Updated: 6 years, 7 months ago

0 stars 0 fork 0 watcher

Born at : Feb. 16, 2018, 6:59 p.m. This repo has been linked 4 different CVEs too.

9aylas/DDE-MS_WORD-Exploit_Detector

Microsoft Office Word File ( doc , docx ) DDE Attack Checker By AX302

cve-2017-11826 msoffice dde-rce dde-attack-checker

Updated: 1 month, 1 week ago

8 stars 3 fork 3 watcher

Born at : Feb. 10, 2018, 6:47 p.m. This repo has been linked 1 different CVEs too.

thatskriptkid/CVE-2017-11826

Exploit for CVE-2017-11826

Python

Updated: 2 years, 6 months ago

8 stars 5 fork 5 watcher

Born at : Feb. 9, 2018, 5:20 p.m. This repo has been linked 1 different CVEs too.

houjingyi233/office-exploit-case-study

None

VBScript Rich Text Format HTML

Updated: 2 weeks, 6 days ago

371 stars 110 fork 110 watcher

Born at : Dec. 29, 2017, 1:16 a.m. This repo has been linked 19 different CVEs too.

pandazheng/Threat-Intelligence-Analyst

威胁情报，恶意样本分析，开源Malware代码收集

Updated: 3 weeks, 2 days ago

332 stars 122 fork 122 watcher

Born at : Dec. 8, 2016, 1:45 a.m. This repo has been linked 3 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-11826 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-11826 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

Modified Analysis by [email protected]

Jul. 16, 2024

Action	Type	Old Value	New Value
Removed	CVSS V3	NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Added	CVSS V3.1		NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Changed	Reference Type	http://www.securityfocus.com/bid/101219 Third Party Advisory, VDB Entry	http://www.securityfocus.com/bid/101219 Broken Link, Third Party Advisory, VDB Entry
Changed	Reference Type	http://www.securitytracker.com/id/1039541 Third Party Advisory, VDB Entry	http://www.securitytracker.com/id/1039541 Broken Link, Third Party Advisory, VDB Entry
Changed	Reference Type	https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html No Types Assigned	https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html Exploit
Changed	Reference Type	https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/ Technical Description, Third Party Advisory	https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/ Broken Link, Technical Description, Third Party Advisory
Changed	Reference Type	https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/ No Types Assigned	https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/ Exploit, Third Party Advisory
Changed	CPE Configuration	OR cpe:2.3:a:microsoft:office:2010::::::: cpe:2.3:a:microsoft:office_online_server::::::::* cpe:2.3:a:microsoft:office_web_apps::::::::* cpe:2.3:a:microsoft:office_web_apps:2010::::::: cpe:2.3:a:microsoft:office_web_apps:2013::::::: cpe:2.3:a:microsoft:sharepoint_enterprise_server:2010::::::: cpe:2.3:a:microsoft:sharepoint_server:2010::::::: cpe:2.3:a:microsoft:web_applications::::::::* cpe:2.3:a:microsoft:word:2007::::::: cpe:2.3:a:microsoft:word:2010::::::: cpe:2.3:a:microsoft:word:2013::::::: cpe:2.3:a:microsoft:word:2016::::::: cpe:2.3:a:microsoft:word_viewer::::::::*	OR cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3::::::* cpe:2.3:a:microsoft:office_online_server:2016::::::: cpe:2.3:a:microsoft:office_web_apps_server:2010:sp2::::::* cpe:2.3:a:microsoft:office_web_apps_server:2013:sp1::::::* cpe:2.3:a:microsoft:office_word_viewer:-::::::: cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016::::::: cpe:2.3:a:microsoft:sharepoint_server:2010:sp2::::::* cpe:2.3:a:microsoft:sharepoint_server:2013:sp1::::::* cpe:2.3:a:microsoft:word:2007:sp3::::::* cpe:2.3:a:microsoft:word:2010:sp2::::::* cpe:2.3:a:microsoft:word:2013:sp1:::-::: cpe:2.3:a:microsoft:word:2013:sp1:::rt::: cpe:2.3:a:microsoft:word:2016:::::::

CVE Modified by [email protected]

May. 14, 2024

Action Type Old Value New Value
CVE Modified by [email protected]

Dec. 12, 2017

Action Type Old Value New Value

Added Reference https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/ [No Types Assigned]
CVE Modified by [email protected]

Nov. 22, 2017

Action Type Old Value New Value

Added Reference https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html [No Types Assigned]

Action	Type	Old Value	New Value
Added	Reference		https://www.tarlogic.com/en/blog/exploiting-word-cve-2017-11826/ [No Types Assigned]

Action	Type	Old Value	New Value
Added	Reference		https://0patch.blogspot.com/2017/11/0patching-pretty-nasty-microsoft-word.html [No Types Assigned]

Initial Analysis by [email protected]

Nov. 03, 2017

Action	Type	Old Value	New Value
Added	CVSS V2		(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Added	CVSS V3		AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Changed	Reference Type	http://www.securityfocus.com/bid/101219 No Types Assigned	http://www.securityfocus.com/bid/101219 Third Party Advisory, VDB Entry
Changed	Reference Type	http://www.securitytracker.com/id/1039541 No Types Assigned	http://www.securitytracker.com/id/1039541 Third Party Advisory, VDB Entry
Changed	Reference Type	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826 No Types Assigned	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11826 Patch, Vendor Advisory
Changed	Reference Type	https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/ No Types Assigned	https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/ Technical Description, Third Party Advisory
Added	CWE		CWE-119
Added	CPE Configuration		OR cpe:2.3:a:microsoft:office:2010::::::: cpe:2.3:a:microsoft:office_online_server::::::::* cpe:2.3:a:microsoft:office_web_apps::::::::* cpe:2.3:a:microsoft:office_web_apps:2010::::::: cpe:2.3:a:microsoft:office_web_apps:2013::::::: cpe:2.3:a:microsoft:sharepoint_enterprise_server:2010::::::: cpe:2.3:a:microsoft:sharepoint_server:2010::::::: cpe:2.3:a:microsoft:web_applications::::::::* cpe:2.3:a:microsoft:word:2007::::::: cpe:2.3:a:microsoft:word:2010::::::: cpe:2.3:a:microsoft:word:2013::::::: cpe:2.3:a:microsoft:word:2016::::::: cpe:2.3:a:microsoft:word_viewer::::::::*

CVE Modified by [email protected]

Oct. 29, 2017

Action	Type	Old Value	New Value
Added	Reference		https://securingtomorrow.mcafee.com/mcafee-labs/analyzing-microsoft-office-zero-day-exploit-cve-2017-11826-memory-corruption-vulnerability/ [No Types Assigned]

CVE Modified by [email protected]

Oct. 15, 2017

Action Type Old Value New Value

Added Reference http://www.securitytracker.com/id/1039541 [No Types Assigned]

Added Reference http://www.securityfocus.com/bid/101219 [No Types Assigned]

Action	Type	Old Value	New Value
Added	Reference		http://www.securitytracker.com/id/1039541 [No Types Assigned]
Added	Reference		http://www.securityfocus.com/bid/101219 [No Types Assigned]

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-11826 is associated with the following CWEs:

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-11826 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

CVE-2017-11826

Microsoft Office Remote Code Execution Vulnerabili - [Actively Exploited]

Description

INFO

Oct. 13, 2017, 1:29 p.m.

July 16, 2024, 5:25 p.m.

No

5.9

1.8

CISA KEV (Known Exploited Vulnerabilities)

Public PoC/Exploit Available at Github

Affected Products

References to Advisories, Solutions, and Tools

Modified Analysis by [email protected]

CVE Modified by [email protected]

CVE Modified by [email protected]

CVE Modified by [email protected]

Initial Analysis by [email protected]

CVE Modified by [email protected]

CVE Modified by [email protected]

CWE - Common Weakness Enumeration

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

95.34 }} -0.50%

0.99414

CVSS31 - Vulnerability Scoring System

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