PT-2020-20412 · Voatz · Voatz

Published 2020-02-13 · Updated 2020-02-27 · CVE-2020-8989

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Voatz application 2020-01-01 for Android

Description The issue allows remote attackers to discover a voter's choice by sniffing the network, as the amount of data transmitted during a single vote depends on the different lengths of metadata across available voting choices. For instance, a small amount of sniffed data may indicate a vote for the candidate with the least metadata. An active man-in-the-middle attacker can exploit this behavior to disrupt voters' abilities to vote for a candidate opposed by the attacker.

Recommendations For the Voatz application 2020-01-01 for Android, consider implementing encryption to protect the metadata and prevent attackers from discovering voting choices by sniffing the network. As a temporary workaround, restrict access to the voting functionality until a patch is available to address the metadata length issue.

Fix

Side Channel Attack

Weakness Enumeration

CWE-203

Related Identifiers

CVE-2020-8989

Affected Products

Voatz

References · 5

• https://blog.voatz.com/?p=1209 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8989 · Security Note
• https://osv.dev/vulnerability/CVE-2020-8989 · Vendor Advisory
• https://t.me/cvenotify/1023 · Telegram Post
• https://internetpolicy.mit.edu/wp-content/uploads/2020/02/SecurityAnalysisOfVoatz_Public.pdf · Note