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CERT Coordination Center

Yahoo! Mobile service discloses random sensitive information to unauthorized users

Vulnerability Note VU#354387

Original Release Date: 2003-02-17 | Last Revised: 2003-02-21

Overview

The Yahoo! Mobile service contains an information exposure vulnerability.

Description

The Yahoo! Mobile Service enables users of handheld devices to take advantage of the same kinds of services Yahoo! Inc. offers to traditional desktop computing users (e.g. web browsing, email, etc.). A vulnerability in the Yahoo! Mobile service allows an attacker to view random queries from legitimate Yahoo! Mobile users. As a result, an attacker may be able to view privileged data, including any credentials that the victim had stored in recently viewed email messages.

Impact

An attacker can cause Yahoo! Mobile servers to return random web pages. Note that the attacker does not have any control over which pages are returned.

Solution

Yahoo! Inc. has fixed this vulnerability.

Vendor Information

354387
 

Yahoo! Inc. Affected

Updated:  February 21, 2003

Status

Affected

Vendor Statement

Yahoo! thanks CERT and the original reporter. We take user information privacy and security very seriously. As a result of their cooperation, this issue was resolved within 8 hours of notification by CERT. Because this was corrected on the server, no action by users is required. To notify Yahoo! of other technical security vulnerabilities, please use the address security@yahoo-inc.com.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Please note that this vulnerability was "fixed" by Yahoo! Inc. on the evening of June 14th, 2002.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base
Temporal
Environmental

References

Acknowledgements

The CERT/CC thanks Bob Whittle for reporting this vulnerability. We also thank Yahoo! Inc. for their rapid response to this issue.

This document was written by Ian A Finlay.

Other Information

CVE IDs: None
Severity Metric: 1.39
Date Public: 2003-02-17
Date First Published: 2003-02-17
Date Last Updated: 2003-02-21 14:17 UTC
Document Revision: 13

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