2188
limits may be related to thermal, power, voltage, current, and frequency. Hardware mechanisms
may be used to protect against alteration of the threshold limit values by untrusted software.
The limit values are generally programmed in standard units for the type of value being read.
However, the hardware-sensor blocks may report the settings in different units depending upon
sensor design and operation. The raw sensor output value is converted to the desired units using
a scale conversion based on the parametric data programmed into the sensor. The final converted
value is then compared with the previously programmed limits.
While the limit values are usually protected, the sensor parametric data values may not be. By
changing the parametric data, safe operational limits may be bypassed.
Relationships
The table(s) below shows the weaknesses and high level categories that are related to this
weakness. These relationships are defined as ChildOf, ParentOf, MemberOr and give insight to
similar items that may exist at higher and lower levels of abstraction. In addition, relationships such
as PeerOf and CanAlsoBe are defined to show similar weaknesses that may want to be explored.
Relevant to the view "Research Concepts" (CWE-1000)
Nature Type ID Name Page
ChildOf 862 Missing Authorization 1780
Relevant to the view "Hardware Design" (CWE-1194)
Nature Type ID Name Page
PeerOf 1299 Missing Protection Mechanism for Alternate Hardware
Interface