Rule History

SID: 2022506 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 3 • Feb 12, 2016, 12:00 PM

Message:

ET EXPLOIT Possible CVE-2016-1287 Invalid Fragment Size Inbound

Rule:

alert udp $EXTERNAL_NET any -> $HOME_NET 500 (msg:"ET EXPLOIT Possible CVE-2016-1287 Invalid Fragment Size Inbound"; flow:to_server; content:"|84 00 00|"; byte_test:1,<,9,0,relative; byte_jump:1,0,relative,post_offset -4; content:"|00 00 00|"; within:3; byte_test:1,<,8,0,relative; reference:url,blog.exodusintel.com/2016/02/10/firewall-hacking; classtype:trojan-activity; sid:2022506; rev:3; metadata:created_at 2016_02_12, cve CVE_2016_1287, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Feb 12, 2016, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Dec 9, 2025, 10:34 PM

Filename:

rules/emerging-exploit.rules