Mozilla Firefox/Firefox ESR/Thunderbird on Windows DLL uncontrolled search path
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.7 | $0-$5k | 0.00 |
A vulnerability was found in Mozilla Firefox, Firefox ESR and Thunderbird on Windows (Web Browser) (version unknown) and classified as critical. This issue affects an unknown function of the component DLL Handler. The manipulation with an unknown input leads to a uncontrolled search path vulnerability. Using CWE to declare the problem leads to CWE-427. The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
Firefox could be made to load attacker-supplied DLL files from the installation directory. This required an attacker that is already capable of placing files in the installation directory. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
The weakness was disclosed 08/10/2020 as Bug 1644954 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2020-15657 since 07/10/2020. The attack may be initiated remotely. The successful exploitation requires a simple authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/11/2020). The attack technique deployed by this issue is T1574 according to MITRE ATT&CK.
Upgrading eliminates this vulnerability.
The entries 159469, 159468, 159466 and 159465 are pretty similar.
Product
Type
Vendor
Name
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: 7.0VulDB Meta Temp Score: 6.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
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: 🔍
NVD Base Score: 🔍
Exploiting
Class: Uncontrolled search pathCWE: CWE-427 / CWE-426
ATT&CK: T1574
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: 🔍
0-Day Time: 🔍
Timeline
07/10/2020 🔍08/10/2020 🔍
08/11/2020 🔍
08/11/2020 🔍
Sources
Vendor: mozilla.orgProduct: mozilla.org
Advisory: Bug 1644954
Status: Not defined
CVE: CVE-2020-15657 (🔍)
See also: 🔍
Entry
Created: 08/11/2020 07:45Updated: 08/11/2020 07:50
Changes: 08/11/2020 07:45 (42), 08/11/2020 07:50 (18)
Complete: 🔍
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