CVE-2023-25734
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS
- 0.78% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Affected
- mozilla/firefox · mozilla/firefox esr · mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1784451Exploit, Issue Tracking, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1809923Issue Tracking, Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1810143Issue Tracking, Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1812338Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1784451Exploit, Issue Tracking, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1809923Issue Tracking, Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1810143Issue Tracking, Permissions Required
- https://bugzilla.mozilla.org/show_bug.cgi?id=1812338Issue Tracking, Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-05/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-06/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-07/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.