Vulnerability Details : CVE-2019-11721
The unicode latin 'kra' character can be used to spoof a standard 'k' character in the addressbar. This allows for domain spoofing attacks as do not display as punycode text, allowing for user confusion. This vulnerability affects Firefox < 68.
Products affected by CVE-2019-11721
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-11721
0.79%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-11721
| 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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
2.8
|
3.6
|
NIST |
References for CVE-2019-11721
-
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
[security-announce] openSUSE-SU-2019:2248-1: important: Security updateMailing List;Third Party Advisory
-
https://www.mozilla.org/security/advisories/mfsa2019-21/
Security vulnerabilities fixed in Firefox 68 — MozillaVendor Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00011.html
[security-announce] openSUSE-SU-2019:2251-1: important: Security updateMailing List;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
[security-announce] openSUSE-SU-2019:2249-1: important: Security updateMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/201908-12
Mozilla Firefox: Multiple vulnerabilities (GLSA 201908-12) — Gentoo securityThird Party Advisory
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1256009
1256009 - (CVE-2019-11721) (punycode) homograph attacks with Κʻ / ĸ (U+0138, *Kra*)Exploit;Issue Tracking;Vendor Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00017.html
[security-announce] openSUSE-SU-2019:2260-1: important: Security updateMailing List;Third Party Advisory
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