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CVE-2023-25734

Published: 2 June 2023

After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine
mdeslaur
starting with Ubuntu 22.04, the firefox package is just a script
that installs the Firefox snap
windows-specific

Priority

Medium

Cvss 3 Severity Score

8.1

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic Ignored
(end of standard support, was needs-triage)
focal Not vulnerable

jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
trusty Ignored
(end of standard support)
upstream Not vulnerable
(debian: Windows-specific)
xenial Ignored
(end of standard support)

Severity score breakdown

Parameter Value
Base score 8.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N