CVE-2025-34082
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 · uneditedA command injection vulnerability exists in IGEL OS versions prior to 11.04.270 within the Secure Terminal and Secure Shadow services. The flaw arises due to improper input sanitization in the handling of specially crafted PROXYCMD commands on TCP ports 30022 and 5900. An unauthenticated attacker with network access to a vulnerable device can inject arbitrary commands, leading to remote code execution with elevated privileges. NOTE: IGEL OS v10.x has reached end-of-life (EOL) status.
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 confidenceA command injection vulnerability in IGEL OS versions prior to 11.04.270 allows unauthenticated attackers to execute arbitrary commands via specially crafted PROXYCMD messages sent to TCP ports 30022 (Secure Terminal) and 5900 (Secure Shadow). The flaw stems from improper input sanitization, enabling remote code execution with elevated privileges.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- None
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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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Identify IGEL OS versionUse the command 'igel info' or check /etc/VERSION to determine the installed IGEL OS version. Compare the version number to 11.04.270.Affected if The installed version is lower than 11.04.270 (e.g., 11.04.260, 11.04.x versions prior to 270, or earlier major versions).
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Verify if TCP port 30022 is listeningRun 'netstat -tlnp | grep 30022' or 'ss -tlnp | grep 30022' to check if the Secure Terminal service is listening on port 30022.Affected if Port 30022 is open and listening, exposing the Secure Terminal service to network requests.
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Verify if TCP port 5900 is listeningRun 'netstat -tlnp | grep 5900' or 'ss -tlnp | grep 5900' to check if the Secure Shadow service is listening on port 5900.Affected if Port 5900 is open and listening, exposing the Secure Shadow service to network requests.
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Confirm network accessibility of vulnerable portsUse 'nmap -p 30022,5900 <target>' or check firewall rules with 'iptables -L' to determine if these ports are reachable from network sources.Affected if Ports 30022 and/or 5900 are accessible from untrusted network segments, allowing unauthenticated PROXYCMD messages to reach the services.
A system is affected if it runs IGEL OS versions prior to 11.04.270 AND has port 30022 or 5900 listening and accessible from the network, enabling unauthenticated command injection via PROXYCMD messages.
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 · scopedUpgrade IGEL OS to version 11.04.270 or later. IGEL OS v10.x is end-of-life and should be migrated to a supported version as there will be no patches.
IGEL OS 11.04.270 or later (11.x branch)
- 1. Identify the current IGEL OS version by accessing the IGEL Universal Management Suite (UMS) or checking the device directly
- 2. If the current version is prior to 11.04.270, plan for an upgrade to IGEL OS 11.04.270 or later
- 3. For IGEL OS v10.x devices: Note that v10.x has reached end-of-life (EOL) and no security patches will be provided; plan to migrate to v11.x
- 4. Create a backup or snapshot of the IGEL OS configuration before upgrading
- 5. Deploy the upgrade to IGEL OS 11.04.270 or later using IGEL UMS or the built-in update mechanism
- 6. After upgrade, verify the Secure Terminal (port 30022) and Secure Shadow (port 5900) services are functioning correctly
- 7. Confirm the version has been updated to 11.04.270 or later using UMS or the device System Information
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-34082 — 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-2025-34082 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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