CVE-2015-4520
Mozilla: Errors in the handling of CORS preflight request headers (MFSA 2015-111)
Severity Score
6.4
*CVSS v2
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header.
Vulnerabilidad en Mozilla Firefox en versiones anteriores a 41.0 y Firefox ESR 38.x en versiones anteriores a 38.3, permite a atacantes remotos eludir los mecanismos de protección de verificación CORS preflight aprovechando la (1) generación de cache-key duplicada o (2) recuperación de un valor desde una respuesta de cabecera HTTP Acces-Control-* incorrecta.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2015-06-10 CVE Reserved
- 2015-09-23 CVE Published
- 2024-07-14 EPSS Updated
- 2024-08-06 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-254: 7PK - Security Features
- CWE-284: Improper Access Control
CAPEC
References (23)
| URL | Tag | Source |
|---|---|---|
| http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html | X_refsource_confirm |
|
| http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html | X_refsource_confirm |
|
| http://www.securityfocus.com/bid/76816 | Vdb Entry | |
| http://www.securitytracker.com/id/1033640 | Vdb Entry | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1200856 | X_refsource_confirm | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1200869 | X_refsource_confirm |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | 38.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | 38.0.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0.1" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | 38.0.5 Search vendor "Mozilla" for product "Firefox Esr" and version "38.0.5" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | 38.1.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.1.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | 38.1.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.1.1" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | 38.2.0 Search vendor "Mozilla" for product "Firefox Esr" and version "38.2.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | 38.2.1 Search vendor "Mozilla" for product "Firefox Esr" and version "38.2.1" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | <= 40.0.3 Search vendor "Mozilla" for product "Firefox" and version " <= 40.0.3" | - |
Affected
| ||||||