CVE-2017-11802

Microsoft Edge Chakra JIT - 'RegexHelper::StringReplace' Must Call the Callback Function with Updating ImplicitCallFlags

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

ChakraCore and Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11792, CVE-2017-11793, CVE-2017-11796, CVE-2017-11797, CVE-2017-11798, CVE-2017-11799, CVE-2017-11800, CVE-2017-11801, CVE-2017-11804, CVE-2017-11805, CVE-2017-11806, CVE-2017-11807, CVE-2017-11808, CVE-2017-11809, CVE-2017-11810, CVE-2017-11811, CVE-2017-11812, and CVE-2017-11821.

ChakraCore y Microsoft Edge en Microsoft Windows 10 Gold, 1511, 1607, 1703, y Windows Server 2016 permiten que un atacante ejecute código arbitrario en el contexto del usuario actual debido a la forma en la que el motor de scripting gestiona objetos en la memoria, lo que también se conoce como "Scripting Engine Memory Corruption Vulnerability". Este ID CVE es exclusivo de CVE-2017-11792, CVE-2017-11793, CVE-2017-11796, CVE-2017-11797, CVE-2017-11798, CVE-2017-11799, CVE-2017-11800, CVE-2017-11801, CVE-2017-11804, CVE-2017-11805, CVE-2017-11806, CVE-2017-11807, CVE-2017-11808, CVE-2017-11809, CVE-2017-11810, CVE-2017-11811, CVE-2017-11812 y CVE-2017-11821.

The "String.prototype.replace" method can be inlined in the JIT process. So in the method, all the calls which may break the JIT assumptions must be invoked with updating "ImplicitCallFlags". But "RegexHelper::StringReplace" calls the replace function without updating the flag. Therefore it fails to detect if a user function was called.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-07-31 CVE Reserved
2017-10-13 CVE Published
2024-07-31 EPSS Updated
2024-09-17 CVE Updated
2024-09-17 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/bid/101130	Third Party Advisory
http://www.securitytracker.com/id/1039529	Third Party Advisory

URL	Date	SRC
https://www.exploit-db.com/exploits/43000	2024-09-17

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11802	2017-10-20

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"	Chakracore Search vendor "Microsoft" for product "Chakracore"	<= 1.7.2 Search vendor "Microsoft" for product "Chakracore" and version " <= 1.7.2"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	-	-	Safe
Microsoft Search vendor "Microsoft"	Chakracore Search vendor "Microsoft" for product "Chakracore"	<= 1.7.2 Search vendor "Microsoft" for product "Chakracore" and version " <= 1.7.2"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1511 Search vendor "Microsoft" for product "Windows 10" and version "1511"	-	Safe
Microsoft Search vendor "Microsoft"	Chakracore Search vendor "Microsoft" for product "Chakracore"	<= 1.7.2 Search vendor "Microsoft" for product "Chakracore" and version " <= 1.7.2"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1607 Search vendor "Microsoft" for product "Windows 10" and version "1607"	-	Safe
Microsoft Search vendor "Microsoft"	Chakracore Search vendor "Microsoft" for product "Chakracore"	<= 1.7.2 Search vendor "Microsoft" for product "Chakracore" and version " <= 1.7.2"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1703 Search vendor "Microsoft" for product "Windows 10" and version "1703"	-	Safe
Microsoft Search vendor "Microsoft"	Chakracore Search vendor "Microsoft" for product "Chakracore"	<= 1.7.2 Search vendor "Microsoft" for product "Chakracore" and version " <= 1.7.2"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016"	*	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	-	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1511 Search vendor "Microsoft" for product "Windows 10" and version "1511"	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1607 Search vendor "Microsoft" for product "Windows 10" and version "1607"	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 10 Search vendor "Microsoft" for product "Windows 10"	1703 Search vendor "Microsoft" for product "Windows 10" and version "1703"	-	Safe
Microsoft Search vendor "Microsoft"	Edge Search vendor "Microsoft" for product "Edge"	*	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016"	*	-	Safe