Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analyzing Android Browser Apps for file:// Vulnerabilities   Securing browsers in mobile devices is very challenging, because these
browser apps usually provide browsing services to other apps in the same
device. A malicious app installed in a device can potentially obtain sensitive
information through a browser app. In this paper, we identify four types of
attacks in Android, collectively known as FileCross, that exploits the
vulnerable file:// to obtain users' private files, such as cookies, bookmarks,
and browsing histories. We design an automated system to dynamically test 115
browser apps collected from Google Play and find that 64 of them are vulnerable
to the attacks. Among them are the popular Firefox, Baidu and Maxthon browsers,
and the more application-specific ones, including UC Browser HD for tablet
users, Wikipedia Browser, and Kids Safe Browser. A detailed analysis of these
browsers further shows that 26 browsers (23%) expose their browsing interfaces
unintentionally. In response to our reports, the developers concerned promptly
patched their browsers by forbidding file:// access to private file zones,
disabling JavaScript execution in file:// URLs, or even blocking external
file:// URLs. We employ the same system to validate the ten patches received
from the developers and find one still failing to block the vulnerability.

17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg