// For flags

CVE-2021-29956

Mozilla: Thunderbird stored OpenPGP secret keys without master password protection

Severity Score

4.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

OpenPGP secret keys that were imported using Thunderbird version 78.8.1 up to version 78.10.1 were stored unencrypted on the user's local disk. The master password protection was inactive for those keys. Version 78.10.2 will restore the protection mechanism for newly imported keys, and will automatically protect keys that had been imported using affected Thunderbird versions. This vulnerability affects Thunderbird < 78.10.2.

Unas claves secretas OpenPGP que se importaban con la versión 78.8.1 de Thunderbird hasta la versión 78.10.1 se almacenaban sin cifrar en el disco local del usuario. La protección por contraseña maestra estaba inactiva para esas claves. La versión 78.10.2 restablecerá el mecanismo de protección para las claves recién importadas, y protegerá automáticamente las claves que habían sido importadas usando las versiones de Thunderbird afectadas. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 78.10.2

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-04-01 CVE Reserved
  • 2021-06-07 CVE Published
  • 2024-03-09 EPSS Updated
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-312: Cleartext Storage of Sensitive Information
  • CWE-522: Insufficiently Protected Credentials
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
 Thunderbird
Search vendor "Mozilla" for product "Thunderbird"
 >= 78.8.1 <= 78.10.1
Search vendor "Mozilla" for product "Thunderbird" and version " >= 78.8.1 <= 78.10.1"
-
Affected