VulnerabilityModified
CVE-2017-7832
This allows for domain spoofing attacks because these combined domain names do not display as punycode.
MEDIUM 5.3EPSS 1.51%
Does this matter?
Lower severity and a low EPSS score (1.51%). Track it; it rarely justifies an emergency change on its own.
Description
The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar by the dotless version of 'i' followed by the same accent as a second character with most font sets. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.
- CVSS 3.0
- 5.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 1.51% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
References
- http://www.securityfocus.com/bid/101832Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039803Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1408782Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2017-24/Vendor Advisory
- http://www.securityfocus.com/bid/101832Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039803Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1408782Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2017-24/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.