Vulnerability Details : CVE-2017-5419
Potential exploit
If a malicious site repeatedly triggers a modal authentication prompt, eventually the browser UI will become non-responsive, requiring shutdown through the operating system. This is a denial of service (DOS) attack. This vulnerability affects Firefox < 52 and Thunderbird < 52.
Vulnerability category: Denial of service
Products affected by CVE-2017-5419
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-5419
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-5419
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
References for CVE-2017-5419
-
https://www.mozilla.org/security/advisories/mfsa2017-05/
Security vulnerabilities fixed in Firefox 52 — MozillaVendor Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1312243
1312243 - (CVE-2017-5419) Trap site uses repeated http auth prompts to keep the user on the pageExploit;Issue Tracking;Patch
-
https://www.mozilla.org/security/advisories/mfsa2017-09/
Security vulnerabilities fixed in - Thunderbird 52 — MozillaVendor 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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