VulPecker

Zhen Li, Deqing Zou, Shouhuai Xu, Hai Jin, Hanchao Qi, Jie Hu
2016 Proceedings of the 32nd Annual Conference on Computer Security Applications - ACSAC '16  
Software vulnerabilities are the fundamental cause of many attacks. Even with rapid vulnerability patching, the problem is more complicated than it looks. One reason is that instances of the same vulnerability may exist in multiple software copies that are difficult to track in real life (e.g., different versions of libraries and applications). This calls for tools that can automatically search for vulnerable software with respect to a given vulnerability. In this paper, we move a step forward
more » ... n this direction by presenting Vulnerability Pecker (VulPecker), a system for automatically detecting whether a piece of software source code contains a given vulnerability or not. The key insight underlying VulPecker is to leverage (i) a set of features that we define to characterize patches, and (ii) code-similarity algorithms that have been proposed for various purposes, while noting that no single code-similarity algorithm is effective for all kinds of vulnerabilities. Experiments show that VulPecker detects 40 vulnerabilities that are not published in the National Vulnerability Database (NVD). Among these vulnerabilities, 18 are not known for their existence and have yet to be confirmed by vendors at the time of writing (these vulnerabilities are "anonymized" in the present paper for ethical reasons), and the other 22 vulnerabilities have been "silently" patched by the vendors in the later releases of the vulnerable products.
doi:10.1145/2991079.2991102 fatcat:xaoikk45n5hhnep4nfqoj32gaq