Mozilla Firefox up to 104 Content-Security-Policy injection
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.0 | $5k-$25k | 0.00 |
A vulnerability classified as critical was found in Mozilla Firefox up to 104 (Web Browser). This vulnerability affects an unknown part of the component Content-Security-Policy. The manipulation with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was published 09/20/2022 by Satoki Tsuji as Bug 1770094 as confirmed advisory (Website). The advisory is shared for download at bugzilla.mozilla.org. The advisory contains:
When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead.This vulnerability was named CVE-2022-40956. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/29/2022). The MITRE ATT&CK project declares the attack technique as T1055.
Upgrading to version 105 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.0
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: InjectionCWE: CWE-74 / CWE-707
ATT&CK: T1055
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Firefox 105
Timeline
09/19/2022 🔍09/20/2022 🔍
09/20/2022 🔍
09/29/2022 🔍
10/25/2022 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: Bug 1770094
Researcher: Satoki Tsuji
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2022-40956 (🔍)
Entry
Created: 09/29/2022 14:15Updated: 10/25/2022 13:07
Changes: 09/29/2022 14:15 (18), 09/29/2022 14:19 (28), 10/25/2022 13:07 (1)
Complete: 🔍
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