5.3med
CVE-2017-7833
Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the non-Latin character wit…
Published 8 y ago · modified 4 mo ago · JSON
CVSS
5.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.4%
percentile 73%
Public exploits
0
none known
Summary
Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the non-Latin character with some font sets on the addressbar. The non-Latin character will not be visible to most viewers. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.
Exploit prediction (EPSS)
1.44% probability of exploitation in the next 30 days, higher than 73% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
Affected products
- Mozilla Firefox
Classification
- Weakness
- CWE-20 Improper Input Validation
References
- mozilla.org /security/advisories/mfsa2017-24/ · x_refsource_CONFIRM, x_transferred
- securityfocus.com /bid/101832 · vdb-entry, x_refsource_BID, x_transferred
- securitytracker.com /id/1039803 · vdb-entry, x_refsource_SECTRACK, x_transferred
- bugzilla.mozilla.org /show_bug.cgi?id=1370497 · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2017-7833
- NVD: CVE-2017-7833
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