Acer Portal Android Application Man-In-The-Middle

Credit: David Coomber
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-295

CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: Partial
Integrity impact: None
Availability impact: None

Acer Portal Android Application - MITM SSL Certificate Vulnerability (CVE-2016-5648) Overview "Acer BYOC?s suite of Apps allows you to start building your own cloud to connect and share everything in your life between your smart devices and your computer. Freely manage anything from photos to movies to documents all over the cloud!" "Register your Acer ID, and activate your Acer BYOC apps today." ( ( Issue The Acer Portal Android application (version and below), installed by the manufacturer on all Acer branded Android devices, does not validate the SSL certificate it receives when connecting to the mobile application login server. Impact An attacker who can perform a man in the middle attack may present a bogus SSL certificate which the application will accept silently. Usernames, passwords and sensitive information could be captured by an attacker without the user's knowledge. Timeline May 27, 2016 - Attempted to notify Acer via &, both emails bounced June 1, 2016 - Provided the vulnerability details to CERT/CC June 2, 2016 - CERT/CC advised they will contact Acer to provide a vulnerability report and track the remediation progress June 22, 2016 - CERT/CC confirmed Acer received the vulnerability report and are working on an updated version June 30, 2016 - Acer released version which resolves this vulnerability Solution Upgrade to version or later CVE-ID: CVE-2016-5648 CERT/CC Report Questions?


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