CVE-2012-4577
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 · uneditedThe Linux firmware image on (1) Korenix Jetport 5600 series serial-device servers and (2) ORing Industrial DIN-Rail serial-device servers has a hardcoded password of "password" for the root account, which allows remote attackers to obtain administrative access via an SSH session.
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 confidenceThe Linux firmware on Korenix Jetport 5600 series and ORing Industrial DIN-Rail serial-device servers contains a hardcoded root password 'password', allowing remote attackers to gain full administrative access via SSH without authentication.
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= 5601= 5601f= 5604= 5604iCVSS 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
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
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.
-
Identify the device modelLog into the device admin interface or check the physical device label to confirm the exact model number is one of: Jetport 5601, 5601f, 5604, or 5604iAffected if The device is a Korenix Jetport 5601, 5601f, 5604, or 5604i model
-
Confirm SSH service is enabledAccess the device web interface or CLI and navigate to the services or network settings to verify if SSH is turned onAffected if SSH service is enabled on the device
-
Determine SSH network exposureCheck the device network configuration to see if SSH is bound to all interfaces (0.0.0.0) or an external-facing IP address rather than only localhost or internal LANAffected if SSH is accessible from an untrusted or external network segment
-
Verify the hardcoded credential existsAttempt an SSH connection to the device using root/password as the credentials - if authentication succeeds, the vulnerability is presentAffected if SSH authentication succeeds with the root/password credential pair
A defender is affected if they operate a Korenix Jetport 5601/5601f/5604/5604i device with SSH enabled and exposed, where the root password 'password' grants access.
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 · scopedImmediately restrict SSH access through firewall rules or disable SSH if unused; contact vendors for firmware updates that remove hardcoded credentials; if no update available, consider network isolation or device replacement.
- Immediately change the default root password 'password' to a strong, unique password via SSH or the device's web interface
- If the device supports it, disable root SSH login and create an admin user with limited privileges
- Restrict SSH access to the device by configuring firewall rules or ACLs to allow only trusted IP addresses
- Consider network segmentation to isolate the device from untrusted networks
- Contact Korenix/ORing vendors directly to inquire about firmware updates that address this hardcoded credential vulnerability
- Document the password change and monitor for unauthorized access attempts
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,912.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-4577 — 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-2012-4577 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data