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Sid 1-45163

Message

BROWSER-IE Microsoft Edge memory corruption attempt

Summary

This event is generated when an attempt to cause a memory corruption in Microsoft Edge is detected.

Impact

Attempted User Privilege Gain

CVE-2017-11893:

CVSS base score 7.5

CVSS impact score 5.9

CVSS exploitability score 1.6

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Detailed information

A type confusion vulnerability has been found in Microsoft Edge. Successful exploitation of this vulnerability can lead to Remote Code Execution. This rule is intended to detect this specific threat. CVE-2017-11893: ChakraCore and Microsoft Edge in Windows 10 1511, 1607, 1703, 1709, 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-2017-11886, CVE-2017-11889, CVE-2017-11890, CVE-2017-11894, CVE-2017-11895, CVE-2017-11901, CVE-2017-11903, CVE-2017-11905, CVE-2017-11907, CVE-2017-11908, CVE-2017-11909, CVE-2017-11910, CVE-2017-11911, CVE-2017-11912, CVE-2017-11913, CVE-2017-11914, CVE-2017-11916, CVE-2017-11918, and CVE-2017-11930.

Affected systems

  • microsoft edge -

Ease of attack

Medium

False positives

N/A

False negatives

N/A

Corrective action

Install the fix for the affected systems

Contributors

  • Cisco's Talos Intelligence Group

Additional References

  • portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-11893