CVE-2020-28169
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 1.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.2% in the next 30 days (EPSS).
- Severity: 7.0 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.2% · EPSS, next 30 days
- Weakness
- CWE-732 · Incorrect permission assignment
- Record status
- Modified
Affected
- td-agent-builder Project td-agent-builder < 2020-12-18
- Debian Linux 10.0
Attack profile CVSS 3.1 · 7.0
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2020-28169.md and follow it. Check whether this project is affected by CVE-2020-28169. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://docs.fluentd.org/installation/install-by-msi
- https://github.com/fluent-plugins-nursery/td-agent-builder/pull/247/commits/6f9cb6393392d62caa99907c0ebbcbab6b94a3f1
- https://github.com/kenhys/td-agent-builder/commit/eec6e2dedf12f2e0c01c2bbe7b8c15b639b3b938
- https://www.fluentd.org/
- https://docs.fluentd.org/installation/install-by-msi
- https://github.com/fluent-plugins-nursery/td-agent-builder/pull/247/commits/6f9cb6393392d62caa99907c0ebbcbab6b94a3f1
- https://github.com/kenhys/td-agent-builder/commit/eec6e2dedf12f2e0c01c2bbe7b8c15b639b3b938
- https://www.fluentd.org/
References
- http://packetstormsecurity.com/files/160791/Fluentd-TD-agent-4.0.1-Insecure-Folder-Permission.html
- https://docs.fluentd.org/installation/install-by-msi
- https://github.com/fluent-plugins-nursery/td-agent-builder/pull/247/commits/6f9cb6393392d62caa99907c0ebbcbab6b94a3f1
- https://github.com/fluent/fluentd/issues/3201
- https://github.com/kenhys/td-agent-builder/commit/eec6e2dedf12f2e0c01c2bbe7b8c15b639b3b938
- https://td-agent-package-browser.herokuapp.com/4/windows
- https://www.debian.org/security/2021/dsa-4949
- https://www.fluentd.org/
- http://packetstormsecurity.com/files/160791/Fluentd-TD-agent-4.0.1-Insecure-Folder-Permission.html
- https://docs.fluentd.org/installation/install-by-msi
- https://github.com/fluent-plugins-nursery/td-agent-builder/pull/247/commits/6f9cb6393392d62caa99907c0ebbcbab6b94a3f1
- https://github.com/fluent/fluentd/issues/3201
- https://github.com/kenhys/td-agent-builder/commit/eec6e2dedf12f2e0c01c2bbe7b8c15b639b3b938
- https://td-agent-package-browser.herokuapp.com/4/windows
- https://www.debian.org/security/2021/dsa-4949
- https://www.fluentd.org/