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CVE-2015-7450: IBM WebSphere Application Server and Server Hypervisor Edition Code Injection.

CVE-2015-7450 is rated critical with a CVSS v3.1 base score of 9.8 and affects IBM WebSphere Application Server and Server Hypervisor Edition, along with 6 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-01-10, which means exploitation in the wild has been observed.

Vulnerability description

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.

Severity breakdown

CVSS v3.1 9.8: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
  • Attack complexity: Low. No special conditions; the attack can be repeated reliably.
  • Privileges required: None. No account or prior access is needed.
  • User interaction: None. No action from any user is needed.
  • Scope: Unchanged. Impact stays within the vulnerable component.
  • Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
  • Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
  • Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-502: Deserialization of Untrusted Data

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

Affected products

  • IBM Websphere Application Server: 7.0.0.0; 8.0.0.0; 8.5; 8.5.0.0; 8.5.5.5
  • IBM Sterling B2b Integrator: 5.2
  • IBM Sterling Integrator: 5.1
  • IBM Tivoli Common Reporting: 2.1; 2.1.1; 2.1.1.2; 3.1; 3.1.0.1; 3.1.0.2; 3.1.2; 3.1.2.1
  • IBM Watson Content Analytics: from 3.0 up to and including 3.0.0.6; from 3.5 up to and including 3.5.0.3
  • IBM Watson Explorer Analytical Components: from 10.0 up to and including 10.0.0.2; 11.0
  • IBM Watson Explorer Annotation Administration Console: from 10.0 up to and including 10.0.0.2; 11.0

References