CVE Vulnerabilities

CVE-2020-4305

Deserialization of Untrusted Data

Published: Jul 09, 2020 | Modified: Nov 21, 2024
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
9.3 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

IBM InfoSphere Information Server 11.3, 11.5, and 11.7 could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data. By persuading a victim to visit a specially crafted Web site, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 176677.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Infosphere_information_server Ibm 11.7.0.0 (including) 11.7.1.1 (including)
Infosphere_information_server Ibm 11.3.0 (including) 11.3.0 (including)
Infosphere_information_server Ibm 11.5.0 (including) 11.5.0 (including)
Infosphere_information_server_on_cloud Ibm 11.7.0.0 (including) 11.7.1.1 (including)
Infosphere_information_server_on_cloud Ibm 11.5.0.0 (including) 11.5.0.0 (including)

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