Vulnerability Details : CVE-2018-20781
In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user's password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext.
Products affected by CVE-2018-20781
- cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
- cpe:2.3:a:gnome:gnome_keyring:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-20781
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 14 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20781
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2018-20781
-
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20781
-
https://github.com/huntergregal/mimipenguin/tree/d95f1e08ce79783794f38433bbf7de5abd9792da
GitHub - huntergregal/mimipenguin at d95f1e08ce79783794f38433bbf7de5abd9792daThird Party Advisory
-
https://github.com/huntergregal/mimipenguin
GitHub - huntergregal/mimipenguin: A tool to dump the login password from the current linux userThird Party Advisory
-
https://bugzilla.gnome.org/show_bug.cgi?id=781486
Bug 781486 – Password is kept in process memory after pam_open_sessionIssue Tracking;Patch;Vendor Advisory
-
https://www.oracle.com/security-alerts/cpujan2021.html
Oracle Critical Patch Update Advisory - January 2021Third Party Advisory
-
https://usn.ubuntu.com/3894-1/
USN-3894-1: GNOME Keyring vulnerability | Ubuntu security noticesThird Party Advisory
-
https://gitlab.gnome.org/GNOME/gnome-keyring/tags/3.27.2
3.27.2 · Tags · GNOME / gnome-keyring · GitLabRelease Notes;Vendor Advisory
-
https://gitlab.gnome.org/GNOME/gnome-keyring/issues/3
pam-gnome-keyring.so reveals user’s password credential as a plaintext form Edit (#3) · Issues · GNOME / gnome-keyring · GitLabVendor Advisory
-
https://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/1772919
Bug #1772919 “pam-gnome-keyring.so reveals user’s password crede...” : Bugs : gnome-keyring package : UbuntuIssue Tracking;Patch;Third Party Advisory
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