ET EXPLOIT Possible Atlassian Confluence Pre-Authorization Arbitrary File Read Attempt (web.xml) (CVE-2021-26085)

SID: 2034150Rev: 10 viewsHistory

Sourceet/open

CreatedOctober 7, 2021

UpdatedOctober 7, 2021

Classificationattempted-admin

alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT Possible Atlassian Confluence Pre-Authorization Arbitrary File Read Attempt (web.xml) (CVE-2021-26085)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/s/123cfx/_/|3b|/WEB-INF/web.xml"; nocase; fast_pattern; http.header_names; content:!"Cookie|0d 0a|"; content:!"Authorization|0d 0a|"; reference:url,packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.html; reference:cve,2021-26085; classtype:attempted-admin; sid:2034150; rev:1; metadata:attack_target Server, created_at 2021_10_07, cve CVE_2021_26085, deployment Perimeter, deployment Internal, performance_impact Low, confidence Medium, signature_severity Major, tag Exploit, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_07;)

References

url	packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.html
cve	2021-26085

Metadata

attack targetServer

created at2021_10_07

cveCVE-2021-26085

deploymentInternal

performance impactLow

confidenceMedium

signature severityMajor

tagDescription_Generated_By_Proofpoint_Nexus

updated at2021_10_07

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