Rule Category

BROWSER-IE -- Snort has detected traffic known to exploit vulnerabilities present in the Internet Explorer browser, or products that have the Trident or Tasman engines.

Alert Message

BROWSER-IE Microsoft Edge Chakra scripting engine memory corruption attempt

Rule Explanation

This event is generated when an attempt to exploit the Microsoft Edge browser occurs. Impact: Attempted User Privilege Gain Details: Ease of Attack:

What To Look For

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

MITRE ATT&CK Framework

Tactic:

Technique:

For reference, see the MITRE ATT&CK vulnerability types here: https://attack.mitre.org

CVE

Additional Links

Rule Vulnerability

CVE Additional Information

CVE-2017-11841
ChakraCore and Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 allows an attacker to gain the same user rights as 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-2017-11836, CVE-2017-11837, CVE-2017-11838, CVE-2017-11839, CVE-2017-11840, CVE-2017-11843, CVE-2017-11846, CVE-2017-11858, CVE-2017-11859, CVE-2017-11861, CVE-2017-11862, CVE-2017-11866, CVE-2017-11869, CVE-2017-11870, CVE-2017-11871, and CVE-2017-11873.
Details
Severity Base Score7.5
Impact Score5.9 Exploit Score1.6
Confidentiality ImpactHIGH Integrity ImpactHIGH
Availability ImpactHIGH Access Vector
Authentication Ease of Access
CVE-2019-1023
An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft Edge, aka 'Scripting Engine Information Disclosure Vulnerability'. This CVE ID is unique from CVE-2019-0990.
Details
Severity Base Score6.5
Impact Score3.6 Exploit Score2.8
Confidentiality ImpactHIGH Integrity ImpactNONE
Availability ImpactNONE Attack VectorNETWORK
ScopeUNCHANGED User InteractionREQUIRED
Authentication Ease of AccessLOW
Privileges RequiredNONE