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Add blocking of traffic caused by snort rule 58741 #373

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merged 1 commit into from
Aug 23, 2024
Merged

Add blocking of traffic caused by snort rule 58741 #373

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3 changes: 3 additions & 0 deletions logsearch-jobs.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,9 @@ instance_groups:
- 'suppress gen_id 1, sig_id 57907, track by_src, ip 127.0.0.1'
- 'suppress gen_id 1, sig_id 26275, track by_src, ip 127.0.0.1'
- 'suppress gen_id 1, sig_id 41495, track by_src, ip 127.0.0.1'
- 'suppress gen_id 1, sig_id 58741'
- 'drop tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"SERVER-OTHER Apache Log4j logging remote code execution attempt"; flow:to_server,established; content:"${"; fast_pattern:only; http_client_body; pcre:"/\x24\x7b.{0,200}(%(25)?24|\x24)(%(25)?7b|\x7b).{0,200}(%(25)?3a|\x3a)(%(25)?(27|2d|5c|22)|[\x27\x2d\x5c\x22])*([jndi\x7d\x3a\x2d]|(%(25)?(7d|3a|2d))|(%(25)?5c|\x5c)u00[a-f0-9]{2}){1,4}(%(25)?(22|27)|[\x22\x27])?(%(25)?(3a|7d)|[\x3a\x7djndi])/Pi"; metadata:policy balanced-ips drop, policy connectivity-ips drop, policy max-detect-ips drop, policy security-ips drop, ruleset community, service http; reference:cve,2021-44228; reference:cve,2021-44832; reference:cve,2021-45046; reference:cve,2021-45105; classtype:attempted-user; sid:58741000; rev:6;)'

persistent_disk_type: logsearch_es_master
stemcell: default
azs: [z1]
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3 changes: 3 additions & 0 deletions logsearch-platform-jobs.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,9 @@ instance_groups:
- 'suppress gen_id 1, sig_id 57907, track by_src, ip 127.0.0.1'
- 'suppress gen_id 1, sig_id 26275, track by_src, ip 127.0.0.1'
- 'suppress gen_id 1, sig_id 41495, track by_src, ip 127.0.0.1'
- 'suppress gen_id 1, sig_id 58741'
- 'drop tcp $EXTERNAL_NET any -> $HOME_NET $HTTP_PORTS (msg:"SERVER-OTHER Apache Log4j logging remote code execution attempt"; flow:to_server,established; content:"${"; fast_pattern:only; http_client_body; pcre:"/\x24\x7b.{0,200}(%(25)?24|\x24)(%(25)?7b|\x7b).{0,200}(%(25)?3a|\x3a)(%(25)?(27|2d|5c|22)|[\x27\x2d\x5c\x22])*([jndi\x7d\x3a\x2d]|(%(25)?(7d|3a|2d))|(%(25)?5c|\x5c)u00[a-f0-9]{2}){1,4}(%(25)?(22|27)|[\x22\x27])?(%(25)?(3a|7d)|[\x3a\x7djndi])/Pi"; metadata:policy balanced-ips drop, policy connectivity-ips drop, policy max-detect-ips drop, policy security-ips drop, ruleset community, service http; reference:cve,2021-44228; reference:cve,2021-44832; reference:cve,2021-45046; reference:cve,2021-45105; classtype:attempted-user; sid:58741000; rev:6;)'

vm_type: logsearch_es_master
persistent_disk_type: logsearch_es_master
stemcell: default
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