CVE-2008-4419
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 · uneditedDirectory traversal vulnerability in the HP JetDirect web administration interface in the HP-ChaiSOE 1.0 embedded web server on the LaserJet 9040mfp, LaserJet 9050mfp, and Color LaserJet 9500mfp before firmware 08.110.9; LaserJet 4345mfp and 9200C Digital Sender before firmware 09.120.9; Color LaserJet 4730mfp before firmware 46.200.9; LaserJet 2410, LaserJet 2420, and LaserJet 2430 before firmware 20080819 SPCL112A; LaserJet 4250 and LaserJet 4350 before firmware 20080819 SPCL015A; and LaserJet 9040 and LaserJet 9050 before firmware 20080819 SPCL110A allows remote attackers to read arbitrary files via directory traversal sequences in the URI.
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 confidenceDirectory traversal vulnerability in HP-ChaiSOE 1.0 embedded web server allows remote unauthenticated attackers to read arbitrary files on the filesystem via specially crafted URI paths containing '../' sequences. The vulnerability affects multiple HP LaserJet printer models and Digital Senders running firmware versions prior to the specified patches.
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<= 20081211_09.131.1<= 20081211_46.211.2<= 20070719_05.011.2<= 20070410_08.112.3<= 20070410_08.112.3<= 20070410_08.112.3<= 20080319_08.015.0<= 20081211_09.131.1CVSS 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
- None
- Availability
- None
AV:N/AC:L/Au:N/C:C/I:N/A:N
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 HP printer models on the networkScan the network for HP devices running the ChaiSOE web server, or access the JetDirect web admin interface (typically on port 80/443) of known HP LaserJet or Digital Sender devices. Look for model numbers such as 9200c, Color LaserJet 4370mfp/9500mfp, LaserJet 2410/2420/2430/4250/4345mfp.Affected if The environment contains any of the following HP devices: 9200c Digital Sender, Color LaserJet 4370mfp, Color LaserJet 9500mfp, LaserJet 2410, LaserJet 2420, LaserJet 2430, LaserJet 4250, or LaserJet 4345mfp.
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Retrieve the firmware versionAccess the JetDirect web administration interface and navigate to the Information or Status page to view the firmware date code. Alternatively, use SNMP (community string 'public') to query the printer: snmpget -v1 -c public <IP> enterprises.11.2.3.9.1.1.7.0 or check the 'Printer Firmware Date' field in the web interface.Affected if The firmware version matches or is earlier than the vulnerable versions: 20081211_09.131.1 (for 9200c, 4345mfp), 20081211_46.211.2 (for Color LaserJet 4370mfp), 20070719_05.011.2 (for Color LaserJet 9500mfp), 20070410_08.112.3 (for LaserJet 2410/2420/2430), or 20080319_08.015.0 (for LaserJet 4250).
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Verify JetDirect web interface is network accessibleConfirm the web-based JetDirect administration interface is reachable on the network by attempting HTTP/HTTPS access to the printer IP on ports 80 or 443. Use a tool like curl or a browser to check: curl -v http://<printer-ip>/ or https://<printer-ip>/.Affected if The JetDirect web interface is exposed and accessible from network segments that include untrusted hosts.
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Confirm ChaiSOE web server is runningSend an HTTP request to the printer and examine the Server header in the response. The HP-ChaiSOE server typically responds with headers indicating HP embedded web server. Example: curl -I http://<printer-ip>/ and look for server identification strings.Affected if The device responds with an HP embedded web server (ChaiSOE) in the HTTP Server header, indicating the vulnerable web server component is active.
A user is affected if they have any of the listed HP printer/digital sender models on their network with firmware versions at or below the specified thresholds AND the JetDirect web interface is network-accessible.
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 dataUpdate affected HP printer firmware to the versions specified in the HP security bulletin (08.110.9, 09.120.9, 46.200.9, or 20080819 variants depending on model). If firmware update is not possible, restrict network access to the JetDirect web administration interface to trusted IPs only.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2008-4419 — 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-2008-4419 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
- No spam, self-promotion, credentials, or personal data