National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-5143 Detail

Current Description

URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scripting (XSS) attacks, but if a tab character is embedded in the "javascript:" URL the protocol is not removed and the script will execute. This could allow users to be socially engineered to run an XSS attack against themselves. This vulnerability affects Firefox < 59.

Source:  MITRE
Description Last Modified:  06/11/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.1 MEDIUM
Vector: AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N (V3 legend)
Impact Score: 2.7
Exploitability Score: 2.8


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/103386 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040514 Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1422643 Issue Tracking Vendor Advisory
https://usn.ubuntu.com/3596-1/ Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-06/ Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Cross-Site Scripting (XSS) (CWE-79)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-5143
NVD Published Date:
06/11/2018
NVD Last Modified:
08/02/2018