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.

Perimeter

Wanadooops! Flaw Reveals User Data

Indexing flaw in the systems of Europe's top broadband ISP reveals personal data of many UK customers

One of the U.K.'s top broadband Internet service providers is investigating a flaw that allowed attackers to harvest personal information about its users and post it on the Internet.

Users on a Wanadoo user bulletin board earlier this week reported a vulnerability in Wanadoo's account recovery system servers that lets any browser user pull down the name, user ID, password, email address, and Web space subdomain of many Wanadoo U.K. customers.

In a statement, Wanadoo confirmed that "a small number of links to files containing customer details have been posted on the Internet." The company said it has taken down the sensitive information and has alerted the customers involved to change their passwords. However, Wanadoo hasn't yet fixed the problem: "An investigation is currently taking place to uncover how this happened and ensure that this does not happen again," the statement said.

According to "Gammarays," an anonymous user who posted the vulnerability, Wanadoo incorrectly configured its account recovery Web servers, allowing the user to view the contents of an entire folder instead of a single index page. A criminal could use the flaw to collect all the names in the folder and/or take control of the affected users' accounts.

Another anonymous user on the bulletin board said he tried the exploit, and was able to view, more than 20,000 Wanadoo customer records. He succeeded in downloading 6,896 of the records, even after Wanadoo said it had taken down the information.

User group postings indicate that the flaw could be up to two years old, but it apparently had not been reported to Wanadoo until this week.

A Wanadoo spokesman declined to answer questions about the details of the vulnerability, but he confirmed that the data leak was limited to Wanadoo UK, which supports some 2,025,000 customers. Wanadoo SA, Wanadoo UK's parent company and a part of France Telecom, is Europe's top broadband service provider with more than 8 million customers.

— Tim Wilson, Site Editor, Dark Reading

Organizations mentioned in this story

  • France Telecom SA (NYSE: FTE)
  • Wanadoo SA
  • Wanadoo UK

    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
    44% of Security Threats Start in the Cloud
    Kelly Sheridan, Staff Editor, Dark Reading,  2/19/2020
    Zero-Factor Authentication: Owning Our Data
    Nick Selby, Chief Security Officer at Paxos Trust Company,  2/19/2020
    Register for Dark Reading Newsletters
    White Papers
    Video
    Cartoon
    Current Issue
    6 Emerging Cyber Threats That Enterprises Face in 2020
    This Tech Digest gives an in-depth look at six emerging cyber threats that enterprises could face in 2020. Download your copy today!
    Flash Poll
    How Enterprises Are Developing and Maintaining Secure Applications
    How Enterprises Are Developing and Maintaining Secure Applications
    The concept of application security is well known, but application security testing and remediation processes remain unbalanced. Most organizations are confident in their approach to AppSec, although others seem to have no approach at all. Read this report to find out more.
    Twitter Feed
    Dark Reading - Bug Report
    Bug Report
    Enterprise Vulnerabilities
    From DHS/US-CERT's National Vulnerability Database
    CVE-2020-9405
    PUBLISHED: 2020-02-26
    IBL Online Weather before 4.3.5a allows unauthenticated reflected XSS via the redirect page.
    CVE-2020-9406
    PUBLISHED: 2020-02-26
    IBL Online Weather before 4.3.5a allows unauthenticated eval injection via the queryBCP method of the Auxiliary Service.
    CVE-2020-9407
    PUBLISHED: 2020-02-26
    IBL Online Weather before 4.3.5a allows attackers to obtain sensitive information by reading the IWEBSERVICE_JSONRPC_COOKIE cookie.
    CVE-2020-9398
    PUBLISHED: 2020-02-25
    ISPConfig before 3.1.15p3, when the undocumented reverse_proxy_panel_allowed=sites option is manually enabled, allows SQL Injection.
    CVE-2015-5201
    PUBLISHED: 2020-02-25
    VDSM and libvirt in Red Hat Enterprise Virtualization Hypervisor (aka RHEV-H) 7-7.x before 7-7.2-20151119.0 and 6-6.x before 6-6.7-20151117.0 as packaged in Red Hat Enterprise Virtualization before 3.5.6 when VSDM is run with -spice disable-ticketing and a VM is suspended and then restored, allows r...