""ET EXPLOIT Jira Server/Data Center 8.4.0 Remote File Read Attempt (CVE-2021-26086) M2""

SID: 2038673

Revision: 1

Class Type: attempted-admin

Metadata: affected_product Atlassian, attack_target Web_Server, created_at 2022_08_30, cve CVE_2021_26086, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2022_08_30

Reference:

  • cve

  • 2021-26086

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/s/" Depth: 3

  • Value: "|2f 5f 2f 3b 2f|META|2d|INF|2f|maven|2f|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/com.atlassian.jira\x2f(?:jira\x2dwebapp\x2ddist|atlassian\x2djira\x2dwebapp)\x2fpom\x2e(?:properties|xml)$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • fast_pattern

  • http_header

source