CVE-2020-6794 — Cleartext Storage of Sensitive Info in Mozilla Thunderbird
Severity
6.5MEDIUMNVD
OSV8.8
EPSS
0.4%
top 39.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 2
Latest updateMay 24
Description
If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Thunderbird 60. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Thunderbird < 68.5.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6
Affected Packages6 packages
Also affects: Ubuntu Linux 16.04, 18.04, 19.10
Patches
🔴Vulnerability Details
4GHSA▶
GHSA-2v3r-qqr5-3x33: If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible↗2022-05-24
OSV▶
CVE-2020-6794: If a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible↗2020-03-02
📋Vendor Advisories
5💬Community
1Bugzilla▶
CVE-2020-6794 Mozilla: Setting a master password post-Thunderbird 52 does not delete unencrypted previously stored passwords↗2020-02-11