CVE Vulnerabilities

CVE-2017-14603

Exposure of Sensitive Information to an Unauthorized Actor

Published: Oct 10, 2017 | Modified: Nov 05, 2017
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

In Asterisk 11.x before 11.25.3, 13.x before 13.17.2, and 14.x before 14.6.2 and Certified Asterisk 11.x before 11.6-cert18 and 13.x before 13.13-cert6, insufficient RTCP packet validation could allow reading stale buffer contents and when combined with the nat and symmetric_rtp options allow redirecting where Asterisk sends the next RTCP report.

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
Asterisk Digium 13.1.0 13.1.0
Asterisk Digium 13.1.0 13.1.0
Asterisk Digium 13.2.1 13.2.1
Asterisk Digium 13.8.0 13.8.0
Asterisk Digium 13.15.0 13.15.0
Asterisk Digium 13.7.0 13.7.0
Asterisk Digium 13.7.0 13.7.0
Asterisk Digium 13.7.1 13.7.1
Asterisk Digium 13.1.0 13.1.0
Asterisk Digium 13.12 13.12
Asterisk Digium 13.15.0 13.15.0
Asterisk Digium 13.1.1 13.1.1
Asterisk Digium 13.14.0 13.14.0
Asterisk Digium 13.4.0 13.4.0
Asterisk Digium 13.15.0 13.15.0
Asterisk Digium 13.17.0 13.17.0
Asterisk Digium 13.2.0 13.2.0
Asterisk Digium 13.3.2 13.3.2
Asterisk Digium 13.0.1 13.0.1
Asterisk Digium 13.10.0 13.10.0
Asterisk Digium 13.10.0 13.10.0
Asterisk Digium 13.6.0 13.6.0
Asterisk Digium 13.2.0 13.2.0
Asterisk Digium 13.8.0 13.8.0
Asterisk Digium 13.0.0 13.0.0
Asterisk Digium 13.11.1 13.11.1
Asterisk Digium 13.13.1 13.13.1
Asterisk Digium 13.17.0 13.17.0
Asterisk Digium 13.11.0 13.11.0
Asterisk Digium 13.9.0 13.9.0
Asterisk Digium 13.12.0 13.12.0
Asterisk Digium 13.8.1 13.8.1
Asterisk Digium 13.12.2 13.12.2
Asterisk Digium 13.0.0 13.0.0
Asterisk Digium 13.13.0 13.13.0
Asterisk Digium 13.15.1 13.15.1
Asterisk Digium 13.16.0 13.16.0
Asterisk Digium 13.9.1 13.9.1
Asterisk Digium 13.0.2 13.0.2
Asterisk Digium 13.14.1 13.14.1
Asterisk Digium 13.7.2 13.7.2
Asterisk Digium 13.4.0 13.4.0
Asterisk Digium 13.3.0 13.3.0
Asterisk Digium 13.11.2 13.11.2
Asterisk Digium 13.13 13.13
Asterisk Digium 13.12.1 13.12.1
Asterisk Digium 13.5.0 13.5.0
Asterisk Digium 13.8.2 13.8.2
Asterisk Digium 13.0.0 13.0.0
Asterisk Digium 13.14.0 13.14.0
Asterisk Digium 13.15.0 13.15.0
Asterisk Digium 13.5.0 13.5.0
Asterisk Digium 13.14.0 13.14.0
Asterisk Digium 13.0.0 13.0.0
Asterisk Digium 13.16.0 13.16.0
Asterisk Digium 13.16.0 13.16.0

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