PT-2014-2020 · Mozilla+3 · Firefox+3

Muneaki Nishimura · Published 2014-09-29 · Updated 2024-12-12 · CVE-2017-7789

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 Mozilla Firefox versions prior to 55

Description The issue is related to the implementation of the Strict Transport Security (HSTS) mechanism in Mozilla Firefox, which fails to properly neutralize special elements in output used by an incoming component. This could allow a remote attacker to compromise data integrity. If a server sends two Strict-Transport-Security (STS) headers for a single connection, they will be rejected as invalid and HTTP Strict Transport Security (HSTS) will not be enabled for the connection.

Recommendations For versions prior to 55, update to version 55 or later to resolve the issue. As a temporary workaround, consider restricting the use of HSTS until the update is applied. Avoid using multiple Strict-Transport-Security headers in a single connection to minimize the risk of exploitation.

Exploit

Fix

Special Elements Injection

Improper Authorization

Weakness Enumeration

CWE-74

CWE-285

Related Identifiers

ALT-PU-2017-2060

ALT-PU-2018-1854

BDU:2021-00045

CVE-2017-7789

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

SUSE-SU-2019:2872-1

USN-3391-1

USN-3391-2

USN-3391-3

Affected Products

Alt Linux

Firefox

Suse

Ubuntu

References · 1935

• 🔥 https://bugzilla.mozilla.org/show_bug.cgi?id=1074642 · Exploit
• https://ubuntu.com/security/CVE-2017-7806 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00045 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7800 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3391-2 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:2872-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7809 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7802 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7803 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-7789 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7799 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2017-18 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7780 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3391-1 · Vendor Advisory