Vulnerability Details : CVE-2017-5420
Potential exploit
A "javascript:" url loaded by a malicious page can obfuscate its location by blanking the URL displayed in the addressbar, allowing for an attacker to spoof an existing page without the malicious page's address being displayed correctly. This vulnerability affects Firefox < 52.
Vulnerability category: Input validation
Products affected by CVE-2017-5420
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-5420
0.76%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-5420
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2017-5420
-
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-2017-5420
-
https://www.mozilla.org/security/advisories/mfsa2017-05/
Security vulnerabilities fixed in Firefox 52 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1284395
1284395 - (CVE-2017-5420) Show about:blank (placeholder "Search or enter address" in the URL bar) (spoof)Exploit;Issue Tracking;Patch;Vendor Advisory
-
http://www.securitytracker.com/id/1037966
Mozilla Firefox Multiple Bugs Let Remote Users Bypass Security Restrictions, Spoof URLs, Obtain Potentially Sensitive Information, Deny Service, and Execute Arbitrary Code - SecurityTrackerThird Party Advisory;VDB Entry
-
http://www.securityfocus.com/bid/96692
Mozilla Firefox MFSA 2017-05 Multiple Security VulnerabilitiesThird Party Advisory;VDB Entry
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