CVE-2022-3703
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 · uneditedAll versions of ETIC Telecom Remote Access Server (RAS) 4.5.0 and prior’s web portal is vulnerable to accepting malicious firmware packages that could provide a backdoor to an attacker and provide privilege escalation to the device.
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 · moderate confidenceAll versions of ETIC Telecom Remote Access Server (RAS) 4.5.0 and prior contain insufficient validation of uploaded firmware packages through the web portal. This allows unauthenticated or low-privilege attackers to upload malicious firmware that installs persistent backdoors and escalates privileges to full device control.
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<= 4.5.0CVSS 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
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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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Identify the ETIC Telecom RAS deviceLocate the device or access its management interface and confirm it is an ETIC Telecom Remote Access Server product. Check the device model, hostname, or web interface banner for 'ETIC Telecom' or 'RAS' branding.Affected if The device is not an ETIC Telecom RAS product.
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Determine the installed firmware versionAccess the device web portal or CLI and navigate to the firmware/version information section. Common paths include System > Status, Administration > Firmware, or running 'show version' via CLI. Note the exact firmware version number displayed.Affected if The firmware version is 4.5.0 or any version lower (e.g., 4.4.x, 4.3.x, etc.).
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Verify web portal accessibilityCheck if the RAS web management interface is reachable from network perspectives other than a trusted management network. Review firewall rules, ACLs, or NAT configurations that expose ports 80/443 or the custom web portal port to untrusted networks.Affected if The web portal is accessible from untrusted or public networks.
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Confirm firmware upload feature statusLog into the web portal and navigate to the firmware management section (typically under Administration, Maintenance, or System > Firmware). Check if there is an option or button to upload or upgrade firmware, and whether it is enabled for the current user role.Affected if Firmware upload functionality is enabled and accessible to the attacker (authenticated or unauthenticated).
You are affected if the device runs ETIC Telecom RAS firmware version 4.5.0 or prior AND the web portal with firmware upload capability is accessible to untrusted users.
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.
From vendor dataApply vendor patches when available; otherwise, restrict web portal access to trusted management networks only, disable firmware upload features if not needed, and implement out-of-band firmware integrity verification.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-3703 — 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-2022-3703 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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