7.2
HIGH
CVE-2020-16125
"Gdm3 Dbus Service Start Vulnerability"
Description

gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could be be chained with an additional issue that could allow a local user to create a new privileged account.

INFO

Published Date :

Nov. 10, 2020, 5:15 a.m.

Last Modified :

Nov. 21, 2024, 5:06 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

6.0

Exploitability Score :

0.5
Public PoC/Exploit Available at Github

CVE-2020-16125 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-16125 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gnome gnome_display_manager
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-16125.

URL Resource
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314 Third Party Advisory
https://gitlab.gnome.org/GNOME/gdm/-/issues/642 Exploit Vendor Advisory
https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-daemon Exploit Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314 Third Party Advisory
https://gitlab.gnome.org/GNOME/gdm/-/issues/642 Exploit Vendor Advisory
https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-daemon Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
za970120604/CVE-2020-16125-Reproduction

None

Updated: 9 months, 1 week ago
1 stars 0 fork 0 watcher
Born at : Aug. 3, 2023, 8:24 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-16125 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-16125 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314
    Added Reference https://gitlab.gnome.org/GNOME/gdm/-/issues/642
    Added Reference https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-daemon
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Nov. 24, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314 No Types Assigned https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1900314 Third Party Advisory
    Changed Reference Type https://gitlab.gnome.org/GNOME/gdm/-/issues/642 No Types Assigned https://gitlab.gnome.org/GNOME/gdm/-/issues/642 Exploit, Vendor Advisory
    Changed Reference Type https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-daemon No Types Assigned https://securitylab.github.com/advisories/GHSL-2020-202-gdm3-LPE-unresponsive-accounts-daemon Exploit, Third Party Advisory
    Added CWE NIST CWE-754
    Added CPE Configuration OR *cpe:2.3:a:gnome:gnome_display_manager:*:*:*:*:*:*:*:* versions up to (excluding) 3.36.2 *cpe:2.3:a:gnome:gnome_display_manager:*:*:*:*:*:*:*:* versions from (including) 3.38.0 up to (excluding) 3.38.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-16125 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-16125 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.01%

score

0.40524

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: