CVE-2023-23602
Mozilla: Content Security Policy wasn't being correctly applied to WebSockets in WebWorkers
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from inside WebWorkers. This vulnerability affects Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.
The Mozilla Foundation Security Advisory describes this flaw as:
A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from inside WebWorkers.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-01-16 CVE Reserved
- 2023-01-19 CVE Published
- 2024-07-04 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-754: Improper Check for Unusual or Exceptional Conditions
- CWE-1385: Missing Origin Validation in WebSockets
CAPEC
References (5)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.mozilla.org/security/advisories/mfsa2023-01 | 2023-06-08 | |
| https://www.mozilla.org/security/advisories/mfsa2023-02 | 2023-06-08 | |
| https://www.mozilla.org/security/advisories/mfsa2023-03 | 2023-06-08 | |
| https://access.redhat.com/security/cve/CVE-2023-23602 | 2023-01-26 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2162341 | 2023-01-26 |
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 Search vendor "Mozilla" for product "Firefox" | < 109.0 Search vendor "Mozilla" for product "Firefox" and version " < 109.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | < 102.7 Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.7" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | < 102.7 Search vendor "Mozilla" for product "Thunderbird" and version " < 102.7" | - |
Affected
| ||||||