CVE-2018-5138 : A spoofing vulnerability can occur when a malicious site with an extremely long

A spoofing vulnerability can occur when a malicious site with an extremely long domain name is opened in an Android Custom Tab (a browser panel inside another app) and the default browser is Firefox for Android. This could allow an attacker to spoof which page is actually loaded and in use. Note: this issue only affects Firefox for Android. Other versions and operating systems are unaffected. This vulnerability affects Firefox < 59.

Published 2018-06-11 21:29:14

Updated 2018-08-08 18:36:29

Source Mozilla Corporation

View at NVD, CVE.org

Vulnerability category: Input validation

Products affected by CVE-2018-5138

Mozilla » Firefox
Versions before (<) 59.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Matching versions
When used together with: Google » Android » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2018-5138

EPSS FAQ

0.22%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 60 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-5138

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.3	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: None

CWE ids for CVE-2018-5138

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-5138

http://www.securitytracker.com/id/1040514

Mozilla Firefox Multiple Bugs Let Remote Users Spoof URLs, Bypass Security Restrictions, Deny Service, Obtain Potentially Sensitive Information, and Execute Arbitrary Code - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url
https://www.mozilla.org/security/advisories/mfsa2018-06/

Security vulnerabilities fixed in Firefox 59 — Mozilla
Vendor Advisory

CVEs referencing this url
https://bugzilla.mozilla.org/show_bug.cgi?id=1432624

1432624 - (CVE-2018-5138) Firefox Custom Tabs have a phishing risk
Issue Tracking;Vendor Advisory
http://www.securityfocus.com/bid/103386

Mozilla Firefox MFSA2018-06 Multiple Security Vulnerabilities
Third Party Advisory;VDB Entry

CVEs referencing this url

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Vulnerability Details : CVE-2018-5138

Products affected by CVE-2018-5138

Exploit prediction scoring system (EPSS) score for CVE-2018-5138

CVSS scores for CVE-2018-5138

CWE ids for CVE-2018-5138

References for CVE-2018-5138