{"@ID": "594", "@Name": "J2EE Framework: Saving Unserializable Objects to Disk", "@Abstraction": "Variant", "@Structure": "Simple", "@Status": "Incomplete", "Description": "The J2EE container attempts to write unserializable objects to disk.", "Extended_Description": "In heavy load conditions, most J2EE application frameworks flush objects to disk to manage memory requirements of incoming requests. For example, session scoped objects, and even application scoped objects, are written to disk when required. While these application frameworks do the real work of writing objects to disk, they do not enforce that those objects be serializable, thus leaving the web application vulnerable to crashes induced by serialization failure. An attacker may be able to mount a denial of service attack by sending enough requests to the server to force the web application to save objects to disk.", "Related_Weaknesses": {"Related_Weakness": {"@Nature": "ChildOf", "@CWE_ID": "1076", "@View_ID": "1000", "@Ordinal": "Primary"}}, "Weakness_Ordinalities": {"Weakness_Ordinality": [{"Ordinality": "Indirect"}, {"Ordinality": "Primary"}]}, "Applicable_Platforms": {"Language": {"@Name": "Java", "@Prevalence": "Undetermined"}, "Technology": [{"@Class": "Web Based", "@Prevalence": "Undetermined"}, {"@Name": "Web Server", "@Prevalence": "Undetermined"}]}, "Modes_Of_Introduction": {"Introduction": {"Phase": "Implementation"}}, "Common_Consequences": {"Consequence": [{"Scope": "Integrity", "Impact": "Modify Application Data", "Note": "There is no guarantee that the process will\n               complete successfully. Data represented by\n               unserializable objects can be corrupted."}, {"Scope": "Availability", "Impact": "DoS: Crash, Exit, or Restart", "Note": "Non-serializability of objects can lead to system crash."}]}, "Potential_Mitigations": {"Mitigation": {"Phase": ["Architecture and Design", "Implementation"], "Description": "All objects that become part of session and application scope must implement the java.io.Serializable interface to ensure serializability of containing objects."}}, "Demonstrative_Examples": {"Demonstrative_Example": {"Intro_Text": "In the following Java example, a Customer Entity JavaBean provides access to customer information in a database for a business application. The Customer Entity JavaBean is used as a session scoped object to return customer information to a Session EJB.", "Example_Code": [{"@Nature": "Bad", "@Language": "Java", "xhtml:div": {"xhtml:br": [null, null, null, null], "xhtml:div": {"@style": "margin-left:1em;", "xhtml:div": {"xhtml:br": [null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null], "#text": "private String id;private String firstName;private String lastName;private Address address;\n                           public Customer() {}\n                           public Customer(String id, String firstName, String lastName) {...}\n                           @Idpublic String getCustomerId() {...}\n                           public void setCustomerId(String id) {...}\n                           public String getFirstName() {...}\n                           public void setFirstName(String firstName) {...}\n                           public String getLastName() {...}\n                           public void setLastName(String lastName) {...}\n                           @OneToOne()public Address getAddress() {...}\n                           public void setAddress(Address address) {...}"}}, "#text": "@Entitypublic class Customer {\n                     \n                     \n                     }"}, "#text_blocks": ["@Entity", "public class Customer {", "private String id;", "private String firstName;", "private String lastName;", "private Address address;", "public Customer() {", "}", "public Customer(String id, String firstName, String lastName) {...}", "@Id", "public String getCustomerId() {...}", "public void setCustomerId(String id) {...}", "public String getFirstName() {...}", "public void setFirstName(String firstName) {...}", "public String getLastName() {...}", "public void setLastName(String lastName) {...}", "@OneToOne()", "public Address getAddress() {...}", "public void setAddress(Address address) {...}", "}"]}, {"@Nature": "Good", "@Language": "Java", "xhtml:div": "public class Customer implements Serializable {...}", "#text_blocks": ["public class Customer implements Serializable {...}"]}], "Body_Text": "However, the Customer Entity JavaBean is an unserialized object which can cause serialization failure and crash the application when the J2EE container attempts to write the object to the system. Session scoped objects must implement the Serializable interface to ensure that the objects serialize properly."}}, "Taxonomy_Mappings": {"Taxonomy_Mapping": {"@Taxonomy_Name": "Software Fault Patterns", "Entry_ID": "SFP1", "Entry_Name": "Glitch in computation"}}, "Mapping_Notes": {"Usage": "Allowed", "Rationale": "This CWE entry is at the Variant level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.", "Comments": "Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.", "Reasons": {"Reason": {"@Type": "Acceptable-Use"}}}, "Content_History": {"Submission": {"Submission_Name": "CWE Community", "Submission_Date": "2006-12-15", "Submission_Version": "Draft 5", "Submission_ReleaseDate": "2006-12-15", "Submission_Comment": "Submitted by members of the CWE community to extend early CWE versions"}, "Modification": [{"Modification_Name": "Eric Dalci", "Modification_Organization": "Cigital", "Modification_Date": "2008-07-01", "Modification_Version": "1.0", "Modification_ReleaseDate": "2008-09-09", "Modification_Comment": "updated Time_of_Introduction"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2008-09-08", "Modification_Version": "1.0", "Modification_ReleaseDate": "2008-09-09", "Modification_Comment": "updated Common_Consequences, Relationships, Other_Notes"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2010-02-16", "Modification_Version": "1.8", "Modification_ReleaseDate": "2010-02-16", "Modification_Comment": "updated Demonstrative_Examples"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2011-06-01", "Modification_Version": "1.13", "Modification_ReleaseDate": "2011-06-01", "Modification_Comment": "updated Common_Consequences"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2012-05-11", "Modification_Version": "2.2", "Modification_ReleaseDate": "2012-05-15", "Modification_Comment": "updated Relationships"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2012-10-30", "Modification_Version": "2.3", "Modification_ReleaseDate": "2012-10-30", "Modification_Comment": "updated Potential_Mitigations"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2014-06-23", "Modification_Version": "2.7", "Modification_ReleaseDate": "2014-06-23", "Modification_Comment": "updated Description, Other_Notes"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2014-07-30", "Modification_Version": "2.8", "Modification_ReleaseDate": "2014-07-31", "Modification_Comment": "updated Relationships, Taxonomy_Mappings"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2017-11-08", "Modification_Version": "3.0", "Modification_ReleaseDate": "2017-11-08", "Modification_Comment": "updated Relationships"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2019-01-03", "Modification_Version": "3.2", "Modification_ReleaseDate": "2019-01-03", "Modification_Comment": "updated Weakness_Ordinalities"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2020-02-24", "Modification_Version": "4.0", "Modification_ReleaseDate": "2020-02-24", "Modification_Comment": "updated Relationships"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2023-04-27", "Modification_Version": "4.11", "Modification_ReleaseDate": "2023-04-27", "Modification_Comment": "updated Relationships, Time_of_Introduction"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2023-06-29", "Modification_Version": "4.12", "Modification_ReleaseDate": "2023-06-29", "Modification_Comment": "updated Mapping_Notes"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2024-02-29", "Modification_Version": "4.14", "Modification_ReleaseDate": "2024-02-29", "Modification_Comment": "updated Relationships"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2025-12-11", "Modification_Version": "4.19", "Modification_ReleaseDate": "2025-12-11", "Modification_Comment": "updated Applicable_Platforms"}, {"Modification_Name": "CWE Content Team", "Modification_Organization": "MITRE", "Modification_Date": "2026-10-28", "Modification_Version": "5.0", "Modification_ReleaseDate": "2026-10-28", "Modification_Comment": "updated Common_Consequences, Description"}], "Previous_Entry_Name": {"@Date": "2008-04-11", "#text": "Persistence in J2EE Frameworks"}}, "entry_type": "Weakness"}