HTTP: Javascript var heapspray and shellcode Attempt Detection

This signature detects attempts to trigger an exploit that leverages a precise Heap Spraying and shellcode techniques referred to as "js_property_spray". Such exploits are part of an attack that, if successful, could allow an attacker to execute arbitrary code on the targeted system.

Extended Description

Google Chrome before 41.0.2272.118 does not properly handle the interaction of IPC, the Gamepad API, and Google V8, which allows remote attackers to execute arbitrary code via unspecified vectors.

References

CVE: CVE-2020-16040

Short Name
HTTP:STC:SCRIPT:VAR-HEAP-SHELL
Severity
Major
Recommended
False
Recommended Action
Drop
Category
HTTP
Keywords
Attempt CVE-2015-1233 CVE-2016-9651 CVE-2020-0674 CVE-2020-16040 Detection Javascript and heapspray shellcode var
Release Date
08/17/2015
Supported Platforms

srx-branch-12.3

srx-19.3

srx-branch-19.3

vsrx3bsd-19.2

srx-branch-19.4

vsrx-19.4

mx-12.3

mx-19.4

vmx-19.4

mx-19.3

vsrx3bsd-19.4

srx-19.4

vsrx-12.3

vmx-19.3

vsrx-19.2

srx-12.3

Sigpack Version
3590
False Positive
Unknown
CVSS Score

7.5

7.6

6.8

4.3

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