CVE-2024-45711
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedSolarWinds Serv-U is vulnerable to a directory traversal vulnerability where remote code execution is possible depending on privileges given to the authenticated user. This issue requires a user to be authenticated and this is present when software environment variables are abused. Authentication is required for this vulnerability
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceSolarWinds Serv-U contains a directory traversal vulnerability that allows authenticated users to escape the intended file transfer directory and access arbitrary filesystem paths. The vulnerability is triggered through abuse of software environment variables, which can be manipulated to traverse directories and potentially achieve remote code execution depending on the authenticated user's privilege level.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 15.5CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm SolarWinds Serv-U installationCheck for Serv-U installation directories (common paths: C:\Program Files\SolarWinds\Serv-U on Windows, /opt/serv-u or /usr/local/serv-u on Linux) and verify the serv-u.exe or serv-u binary exists. Use commands like 'Get-Process Serv-U' on Windows or 'ps aux | grep serv-u' on Linux to check for running processes.Affected if Serv-U is installed and running
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Determine installed Serv-U versionRun 'Serv-UAdmin.exe --version' or check the About dialog in Serv-U Admin Console. On Windows, also check registry key HKLM\SOFTWARE\SolarWinds\Serv-U\Version. On Linux, check /etc/serv-u/servu.cfg or the RPM/DEB package version.Affected if Installed version is any version below 15.5 (e.g., 15.4.2, 15.4.1, 15.4.0, etc.)
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Verify authentication is enabledCheck Serv-U configuration for user accounts. In the Admin Console, navigate to Users > All Users or check the servu.ini/servu.cfg file for [User] sections. Confirm that user authentication is active rather than in anonymous-only mode.Affected if User authentication is enabled and valid user accounts exist in Serv-U
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Check file transfer root directory configurationIn Serv-U Admin Console, examine each user's Home Directory setting (Users > select user > General tab). Check the main Serv-U configuration for the default root path. Look for any custom environment variables set in the virtual filesystem.Affected if Users have write access to directories and custom environment variables can be configured in user settings
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Inspect for environment variable manipulationReview Serv-U logs (typically in the logs subdirectory) for entries containing patterns like '../' or '..\' in file paths, or queries involving environment variable syntax ($VAR, %VAR%). Also check if users have permission to modify PATH or other environment variables in their session settings.Affected if Directory traversal patterns appear in logs or environment variables are user-configurable in the file transfer session
You are affected if SolarWinds Serv-U is installed with a version below 15.5 AND user authentication is enabled, allowing an authenticated user to potentially escape the configured file transfer directory via manipulated environment variables.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped15.5
Apply the vendor patch when released and review user privilege configurations to ensure least privilege. Implement network segmentation and consider WAF rules to detect directory traversal patterns as compensating controls until the patch is applied.
Serv-U 15.5 or later (latest stable release)
- 1. Identify the current installed version of SolarWinds Serv-U by checking the About or version information in the Serv-U administration interface, or using the command line if available
- 2. Before upgrading, create a complete backup of the Serv-U configuration, including all settings, user data, and any custom configurations
- 3. Download the latest version of Serv-U (version 15.5 or higher) from the official SolarWinds customer portal at solarwinds.com
- 4. Stop the Serv-U service to ensure a clean upgrade process
- 5. Install the Serv-U 15.5 or newer version, following the standard SolarWinds upgrade procedures documented in the installation guide
- 6. After installation, start the Serv-U service and verify the upgrade was successful by checking the version number
- 7. Review and test critical Serv-U functionality to ensure normal operations are maintained
- 8. Since this vulnerability requires authentication, ensure that all user accounts have appropriate least-privilege permissions and audit user access controls
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-45711 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-45711 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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