7.0
HIGH
CVE-2020-28169
Fluentd td-agent-builder Power User Privilege Escalation
Description

The td-agent-builder plugin before 2020-12-18 for Fluentd allows attackers to gain privileges because the bin directory is writable by a user account, but a file in bin is executed as NT AUTHORITY\SYSTEM.

INFO

Published Date :

Dec. 24, 2020, 3:15 p.m.

Last Modified :

April 5, 2022, 4:04 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.0
Public PoC/Exploit Available at Github

CVE-2020-28169 has a 4 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-2020-28169 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 Debian debian_linux
1 Td-agent-builder_project td-agent-builder
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-2020-28169.

URL Resource
http://packetstormsecurity.com/files/160791/Fluentd-TD-agent-4.0.1-Insecure-Folder-Permission.html Exploit Third Party Advisory VDB Entry
https://docs.fluentd.org/installation/install-by-msi Product Vendor Advisory
https://github.com/fluent-plugins-nursery/td-agent-builder/pull/247/commits/6f9cb6393392d62caa99907c0ebbcbab6b94a3f1 Patch Third Party Advisory
https://github.com/fluent/fluentd/issues/3201 Exploit Issue Tracking Third Party Advisory
https://github.com/kenhys/td-agent-builder/commit/eec6e2dedf12f2e0c01c2bbe7b8c15b639b3b938 Patch Third Party Advisory
https://td-agent-package-browser.herokuapp.com/4/windows Third Party Advisory
https://www.debian.org/security/2021/dsa-4949 Third Party Advisory
https://www.fluentd.org/ Vendor 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).

None

Updated: 1 month, 2 weeks ago
34 stars 3 fork 3 watcher
Born at : March 12, 2021, 12:22 p.m. This repo has been linked 1063 different CVEs too.

None

Updated: 2 months ago
19 stars 10 fork 10 watcher
Born at : Jan. 2, 2021, 10:19 p.m. This repo has been linked 1052 different CVEs too.

Insecure Folder permission that lead to privilege escalation

Updated: 3 years, 11 months ago
0 stars 0 fork 0 watcher
Born at : Dec. 24, 2020, 10:27 a.m. This repo has been linked 1 different CVEs too.

📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.

security cve exploit poc vulnerability

Updated: 9 hours ago
6546 stars 1140 fork 1140 watcher
Born at : Dec. 8, 2019, 1:03 p.m. This repo has been linked 980 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-2020-28169 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-28169 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 [email protected]

    May. 14, 2024

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

    Apr. 05, 2022

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/160791/Fluentd-TD-agent-4.0.1-Insecure-Folder-Permission.html No Types Assigned http://packetstormsecurity.com/files/160791/Fluentd-TD-agent-4.0.1-Insecure-Folder-Permission.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type https://github.com/fluent/fluentd/issues/3201 Exploit, Third Party Advisory https://github.com/fluent/fluentd/issues/3201 Exploit, Issue Tracking, Third Party Advisory
    Changed Reference Type https://github.com/fluent-plugins-nursery/td-agent-builder/pull/247/commits/6f9cb6393392d62caa99907c0ebbcbab6b94a3f1 No Types Assigned https://github.com/fluent-plugins-nursery/td-agent-builder/pull/247/commits/6f9cb6393392d62caa99907c0ebbcbab6b94a3f1 Patch, Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2021/dsa-4949 No Types Assigned https://www.debian.org/security/2021/dsa-4949 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Aug. 05, 2021

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2021/dsa-4949 [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 05, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/160791/Fluentd-TD-agent-4.0.1-Insecure-Folder-Permission.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 29, 2020

    Action Type Old Value New Value
    Added Reference https://github.com/fluent-plugins-nursery/td-agent-builder/pull/247/commits/6f9cb6393392d62caa99907c0ebbcbab6b94a3f1 [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 28, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://docs.fluentd.org/installation/install-by-msi No Types Assigned https://docs.fluentd.org/installation/install-by-msi Product, Vendor Advisory
    Changed Reference Type https://github.com/fluent/fluentd/issues/3201 No Types Assigned https://github.com/fluent/fluentd/issues/3201 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/kenhys/td-agent-builder/commit/eec6e2dedf12f2e0c01c2bbe7b8c15b639b3b938 No Types Assigned https://github.com/kenhys/td-agent-builder/commit/eec6e2dedf12f2e0c01c2bbe7b8c15b639b3b938 Patch, Third Party Advisory
    Changed Reference Type https://td-agent-package-browser.herokuapp.com/4/windows No Types Assigned https://td-agent-package-browser.herokuapp.com/4/windows Third Party Advisory
    Changed Reference Type https://www.fluentd.org/ No Types Assigned https://www.fluentd.org/ Vendor Advisory
    Added CWE NIST CWE-732
    Added CPE Configuration AND OR *cpe:2.3:a:td-agent-builder_project:td-agent-builder:*:*:*:*:*:fluentd:*:* versions up to (excluding) 2020-12-18 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
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.
Exploit Prediction

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

0.24 }} 0.07%

score

0.61671

percentile

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