CVE Vulnerabilities

CVE-2016-5765

Exposure of Sensitive Information to an Unauthorized Actor

Published: Nov 29, 2016 | Modified: Nov 07, 2023
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

Administrative Server in Micro Focus Host Access Management and Security Server (MSS) and Reflection for the Web (RWeb) and Reflection Security Gateway (RSG) and Reflection ZFE (ZFE) allows remote unauthenticated attackers to read arbitrary files via a specially crafted URL that allows limited directory traversal. Applies to MSS 12.3 before 12.3.326 and MSS 12.2 before 12.2.342 and RSG 12.1 before 12.1.362 and RWeb 12.3 before 12.3.312 and RWeb 12.2 before 12.2.342 and RWeb 12.1 before 12.1.362 and ZFE 2.0.1 before 2.0.1.18 and ZFE 2.0.0 before 2.0.0.52 and ZFE 1.4.0 before 1.4.0.14.

Weakness

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Affected Software

Name Vendor Start Version End Version
Host_access_management_and_security_server Microfocus 12.2 (including) 12.2 (including)
Host_access_management_and_security_server Microfocus 12.3 (including) 12.3 (including)
Reflection_for_the_web Microfocus 12.1 (including) 12.1 (including)
Reflection_for_the_web Microfocus 12.2 (including) 12.2 (including)
Reflection_for_the_web Microfocus 12.3 (including) 12.3 (including)
Reflection_security_gateway Microfocus 12.1 (including) 12.1 (including)
Reflection_zfe Microfocus 1.4.0.14 (including) 1.4.0.14 (including)
Reflection_zfe Microfocus 2.0.0.52 (including) 2.0.0.52 (including)
Reflection_zfe Microfocus 2.0.1.18 (including) 2.0.1.18 (including)

Extended Description

There are many different kinds of mistakes that introduce information exposures. The severity of the error can range widely, depending on the context in which the product operates, the type of sensitive information that is revealed, and the benefits it may provide to an attacker. Some kinds of sensitive information include:

Information might be sensitive to different parties, each of which may have their own expectations for whether the information should be protected. These parties include:

Information exposures can occur in different ways:

It is common practice to describe any loss of confidentiality as an “information exposure,” but this can lead to overuse of CWE-200 in CWE mapping. From the CWE perspective, loss of confidentiality is a technical impact that can arise from dozens of different weaknesses, such as insecure file permissions or out-of-bounds read. CWE-200 and its lower-level descendants are intended to cover the mistakes that occur in behaviors that explicitly manage, store, transfer, or cleanse sensitive information.

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References