PT-2017-4022 · Mozilla+2 · Firefox+2

Jose María Acuña · Published 2017-05-31 · Updated 2024-12-12 · CVE-2017-7815

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 56

Description The issue is related to the use of the "data:" protocol in Firefox, which can be exploited to create a modal dialog through JavaScript. This allows an attacker to spoof the origin of the modal dialog, making it appear as if it comes from an arbitrary domain. The attack is only successful on installations where e10 multiprocess is turned off, as those with e10s turned on do not support the modal dialog functionality.

Recommendations For versions prior to 56, update to a version that contains a fix for this issue to prevent the spoofing of the modal dialog's origin. As a temporary workaround, consider disabling the use of modal dialogs in JavaScript until a patch is available.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2017-2437

ALT-PU-2018-1854

BDU:2021-00181

CVE-2017-7815

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

USN-3435-1

USN-3435-2

Affected Products

Alt Linux

Firefox

Ubuntu

References · 1896

• 🔥 https://bugzilla.mozilla.org/show_bug.cgi?id=1368981 · Exploit
• https://mozilla.org/en-US/security/advisories/mfsa2017-21 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7814 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7818 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2017-21 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-7815 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7793 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-7815 · Security Note
• https://ubuntu.com/security/CVE-2017-7822 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7815 · Vendor Advisory
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=1212483 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7816 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-7815 · Security Note
• https://ubuntu.com/security/CVE-2017-7820 · Vendor Advisory