CVE Vulnerabilities

CVE-2015-7450

Deserialization of Untrusted Data

Published: Jan 02, 2016 | Modified: Feb 12, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
10 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT infrastructure, and mobile and social products allow remote attackers to execute arbitrary commands via a crafted serialized Java object, related to the InvokerTransformer class in the Apache Commons Collections library.

Weakness

The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

Affected Software

Name Vendor Start Version End Version
Sterling_b2b_integrator Ibm 5.2 (including) 5.2 (including)
Sterling_integrator Ibm 5.1 (including) 5.1 (including)
Tivoli_common_reporting Ibm 2.1 (including) 2.1 (including)
Tivoli_common_reporting Ibm 2.1.1 (including) 2.1.1 (including)
Tivoli_common_reporting Ibm 2.1.1.2 (including) 2.1.1.2 (including)
Tivoli_common_reporting Ibm 3.1 (including) 3.1 (including)
Tivoli_common_reporting Ibm 3.1.0.1 (including) 3.1.0.1 (including)
Tivoli_common_reporting Ibm 3.1.0.2 (including) 3.1.0.2 (including)
Tivoli_common_reporting Ibm 3.1.2 (including) 3.1.2 (including)
Tivoli_common_reporting Ibm 3.1.2.1 (including) 3.1.2.1 (including)
Watson_content_analytics Ibm 3.0 (including) 3.0.0.6 (including)
Watson_content_analytics Ibm 3.5 (including) 3.5.0.3 (including)
Watson_explorer_analytical_components Ibm 10.0 (including) 10.0.0.2 (including)
Watson_explorer_analytical_components Ibm 11.0 (including) 11.0 (including)
Watson_explorer_annotation_administration_console Ibm 10.0 (including) 10.0.0.2 (including)
Watson_explorer_annotation_administration_console Ibm 11.0 (including) 11.0 (including)
Websphere_application_server Ibm 7.0.0.0 (including) 7.0.0.0 (including)
Websphere_application_server Ibm 8.0.0.0 (including) 8.0.0.0 (including)
Websphere_application_server Ibm 8.5 (including) 8.5 (including)
Websphere_application_server Ibm 8.5.0.0 (including) 8.5.0.0 (including)
Websphere_application_server Ibm 8.5.5.5 (including) 8.5.5.5 (including)

Extended Description

It is often convenient to serialize objects for communication or to save them for later use. However, deserialized data or code can often be modified without using the provided accessor functions if it does not use cryptography to protect itself. Furthermore, any cryptography would still be client-side security – which is a dangerous security assumption. Data that is untrusted can not be trusted to be well-formed. When developers place no restrictions on “gadget chains,” or series of instances and method invocations that can self-execute during the deserialization process (i.e., before the object is returned to the caller), it is sometimes possible for attackers to leverage them to perform unauthorized actions, like generating a shell.

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References