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A Decade of Reoccurring Software Weaknesses
Assane Gueye1, Carlos E C Galhardo2, Irena Bojanova3
1Carnegie Mellon University Africa.
IEEE Security & Privacy
|March 20, 2023
Summary
The Common Weakness Enumeration (CWE) metric overemphasizes frequency, neglecting exploitability and impact. Our new metric corrects this bias, identifying the most critical software weaknesses from the past decade.
Area of Science:
- Computer Science
- Software Engineering
- Cybersecurity
Background:
- The Common Weakness Enumeration (CWE) is a community-developed list of common software security weaknesses.
- CWE provides an aggregate metric to identify the 'Most Dangerous Software Errors'.
- The current metric disproportionately weights frequency over exploitability and impact.
Purpose of the Study:
- To introduce a novel metric for ranking software weaknesses.
- To mitigate the bias in the existing CWE metric.
- To identify and discuss the most significant software weaknesses over the last decade.
Main Methods:
- Developed a new equation to calculate software weakness severity.
- Incorporated exploitability and impact alongside frequency.
- Analyzed CWE data over a ten-year period.
Main Results:
- The proposed metric reduces bias towards frequency.
- Identified key software weaknesses with high exploitability and impact.
- Highlighted shifts in the landscape of dangerous software errors.
Conclusions:
- A revised metric provides a more accurate assessment of software weakness danger.
- Prioritizing exploitability and impact is crucial for effective vulnerability management.
- Continuous evaluation of software weaknesses is essential for cybersecurity.
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