""ET EXPLOIT Possible F5 BIG-IP Infoleak and Out-of-Bounds Write Inbound (CVE-2021-22991)""
SID: 2032173
Revision: 2
Class Type: attempted-admin
Metadata: attack_target Server, created_at 2021_03_18, cve CVE_2021_22991, deployment Perimeter, deployment Internal, signature_severity Major, updated_at 2021_03_18
Reference:
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cve
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2021-22991
Protocol: tcp
Source Network: any
Source Port: any
Destination Network: [$HOME_NET,$HTTP_SERVERS]
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "|3a 2f 2f 5b|"
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Value: "|5d|"
Within:
PCRE: "/\x5d$/U"
Special Options:
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http_method
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http_uri
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fast_pattern
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http_uri