What is the vulnerability ID of this vulnerability?

The vulnerability ID is CVE-2021-25276.

What is the severity level of CVE-2021-25276?

The severity level of CVE-2021-25276 is high.

What software is affected by CVE-2021-25276?

SolarWinds Serv-U versions up to 15.2.2 are affected by CVE-2021-25276.

How can an unprivileged Windows user exploit CVE-2021-25276?

An unprivileged Windows user can add an FTP user by copying a valid profile file to the world-readable and writable directory containing user profile files.

Where can I find more information about CVE-2021-25276?

You can find more information about CVE-2021-25276 at the following link: [https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/full-system-control-with-new-solarwinds-orion-based-and-serv-u-ftp-vulnerabilities/](https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/full-system-control-with-new-solarwinds-orion-based-and-serv-u-ftp-vulnerabilities/)

Vulnerability/
CVE-2021-25276

high

7.1

CWE

732

3/2/2021

3/8/2024

CVE-2021-25276

First published: Wed Feb 03 2021(Updated: )

In SolarWinds Serv-U before 15.2.2 Hotfix 1, there is a directory containing user profile files (that include users' password hashes) that is world readable and writable. An unprivileged Windows user (having access to the server's filesystem) can add an FTP user by copying a valid profile file to this directory. For example, if this profile sets up a user with a C:\ home directory, then the attacker obtains access to read or replace arbitrary files with LocalSystem privileges.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
SolarWinds Serv-U	<15.2.2
SolarWinds Serv-U	=15.2.2

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Reference Links

https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/full-system-control-with-new-solarwinds-orion-based-and-serv-u-ftp-vulnerabilities/

Frequently Asked Questions

What is the vulnerability ID of this vulnerability?
The vulnerability ID is CVE-2021-25276.
What is the severity level of CVE-2021-25276?
The severity level of CVE-2021-25276 is high.
What software is affected by CVE-2021-25276?
SolarWinds Serv-U versions up to 15.2.2 are affected by CVE-2021-25276.
How can an unprivileged Windows user exploit CVE-2021-25276?
An unprivileged Windows user can add an FTP user by copying a valid profile file to the world-readable and writable directory containing user profile files.
Where can I find more information about CVE-2021-25276?
You can find more information about CVE-2021-25276 at the following link: [https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/full-system-control-with-new-solarwinds-orion-based-and-serv-u-ftp-vulnerabilities/](https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/full-system-control-with-new-solarwinds-orion-based-and-serv-u-ftp-vulnerabilities/)

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agent/softwarecombine
agent/last-modified-date
agent/event
agent/first-publish-date
collector/mitre-cve
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vendor/solarwinds
canonical/solarwinds serv-u
version/solarwinds serv-u/15.2.2

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