The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.10 through 3.5.11, 3.6.4 through 3.6.8, and 4.0 Beta1 uses a random number generator that is seeded only once per document object, which makes it easier for remote attackers to track a user, or trick a user into acting upon a spoofed pop-up message, by calculating the seed value, related to a "temporary footprint" and an "in-session phishing attack." NOTE: this vulnerability exists because of an incorrect fix for CVE-2008-5913.



Source: MITRE

Published: 2010-09-15

Updated: 2017-09-19

Type: CWE-310

Risk Information

CVSS v2.0

Base Score: 5.8

Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)

Impact Score: 4.9

Exploitability Score: 8.6

Severity: MEDIUM