Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Vulnerabilities / Threats

Twitter Flaw Exposes Direct Messages To Third-Party Applications

Applications can view Twitter DMs even without users' permission, researcher says

A security researcher has discovered a flaw in Twitter that allows third-party applications to gain access to direct messages even if the user has not given permission for them to do so.

In a blog about the Twitter vulnerability, IOActive researcher Cesar Cerrudo outlined a flaw in the social networking service that enables Twitter-enabled applications to gain more access to the user's data than they are given permission to.

"After logging in to [a third-party] application, I suddenly saw something strange," Cerrudo writes. The application was displaying all of my Twitter direct messages. This was a huge and scary surprise. I wondered how this was possible. How had the application bypassed Twitter's security restrictions? I needed to know the answer.

Cerrudo goes on to explain that the user's access permission is only required after the first sign-in -- when logging on a second or third time, the application was able to gain access to the DM data without permissions.

Twitter fixed the problem within 24 hours after Cerrudo notified the company, according to the blog. However, users must still go in and revoke the permissions before their DM data will be completely safe.

Twitter has not posted any information about the flaw.

Have a comment on this story? Please click "Add a Comment" below. If you'd like to contact Dark Reading's editors directly, send us a message. Tim Wilson is Editor in Chief and co-founder of Dark Reading.com, UBM Tech's online community for information security professionals. He is responsible for managing the site, assigning and editing content, and writing breaking news stories. Wilson has been recognized as one ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Attackers Leave Stolen Credentials Searchable on Google
Kelly Sheridan, Staff Editor, Dark Reading,  1/21/2021
How to Better Secure Your Microsoft 365 Environment
Kelly Sheridan, Staff Editor, Dark Reading,  1/25/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Write a Caption, Win an Amazon Gift Card! Click Here
Latest Comment: This comment is waiting for review by our moderators.
Current Issue
2020: The Year in Security
Download this Tech Digest for a look at the biggest security stories that - so far - have shaped a very strange and stressful year.
Flash Poll
Assessing Cybersecurity Risk in Today's Enterprises
Assessing Cybersecurity Risk in Today's Enterprises
COVID-19 has created a new IT paradigm in the enterprise -- and a new level of cybersecurity risk. This report offers a look at how enterprises are assessing and managing cyber-risk under the new normal.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-4815
PUBLISHED: 2021-01-27
IBM Cloud Pak for Security (CP4S) 1.4.0.0 could allow a remote user to obtain sensitive information from HTTP response headers that could be used in further attacks against the system.
CVE-2020-4816
PUBLISHED: 2021-01-27
IBM Cloud Pak for Security (CP4S) 1.4.0.0 could allow a remote attacker to obtain sensitive information, caused by the failure to properly enable HTTP Strict Transport Security. An attacker could exploit this vulnerability to obtain sensitive information using man in the middle techniques. IBM X-For...
CVE-2020-4820
PUBLISHED: 2021-01-27
IBM Cloud Pak for Security (CP4S) 1.4.0.0 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.
CVE-2020-4967
PUBLISHED: 2021-01-27
IBM Cloud Pak for Security (CP4S) 1.3.0.1 could disclose sensitive information through HTTP headers which could be used in further attacks against the system. IBM X-Force ID: 192425.
CVE-2020-36012
PUBLISHED: 2021-01-27
Stored XSS vulnerability in BDTASK Multi-Store Inventory Management System 1.0 allows a local admin to inject arbitrary code via the Customer Name Field.