Use-After-FreeMail: Generalizing the Use-After-Free Problem and Applying it to Email Services
Use-After-FreeMail: Generalizing the Use-After-Free Problem and Applying it to Email Services
复制标题
Use-After-FreeMail：概括 Use-After-Free 问题并将其应用于电子邮件服务
DOI：
10.1145/3196494.3196514
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Moritz Lipp
中科院分区：
文献类型：
--
作者：
D. Gruss;Michael Schwarz;Matthias Wübbeling;Simon Guggi;Timo Malderle;Stefan More;Moritz Lipp
Use-after-free is a type of vulnerability commonly present in software written in memory-unsafe languages like C or C++, where a program frees a memory buffer too early. By placing counterfeit structures at the freed memory location, an attacker can leak information or gain execution control upon subsequent access. In this paper, we show that the concept of use-after-free can be generalized to any environment and situation where resources can be silently exchanged. As an instance of our generalization we demonstrate Use-After-FreeMail attacks. Use-After-FreeMail attacks gather email addresses from publicly available database leaks. The fully automated quantitative analysis brought to light that 33.5% of all free-mail addresses we tested are not valid anymore. In two user studies with 100 and 31 participants we found that 11-19% of users are affected by our attack. In qualitative case studies we investigated what information can be gained in Use-After-FreeMail attacks, e.g., payment information, and how far currently used accounts can be compromised (identity theft). Finally, drawing the connection between mitigations against traditional use-after-free scenarios and the Use-After-FreeMail scenario, we provide a concise list of recommendations to free-mail providers and users as a protection against use-after-free attacks.
Cloud Strife：降低域验证证书的安全风险
DOI：
10.14722/ndss.2018.23327
发表时间：
2018
期刊：
Internet Society Symposium on Network and Distributed System Security (NDSS
影响因子：
--
作者：
Borgolte, Kevin;Fiebig, Tobias;Hao, Shuang;Kruegel, Christopher;Vigna, Giovanni
通讯作者：
Vigna, Giovanni