""ET WEB_CLIENT VBscript UAF (CVE-2018-8373)""

SID: 2026411

Revision: 1

Class Type: attempted-user

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_09_26, cve CVE_2018_8373, deployment Perimeter, signature_severity Major, updated_at 2018_09_26

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: to_client,established

Contents:

  • Value: "vbscript"

  • Value: "class_initialize"

  • Value: "<script "

  • Value: "Redim"

  • Value: "private"

  • Value: "Public"

Within:

PCRE: "/^\s+Default\s+Property\b(?:(?!end\sproperty).)?\bReDim\s+Preserve\s+array\b/Rsi"

Special Options:

  • file_data

  • nocase

  • nocase

  • nocase

  • nocase

  • nocase

source