CVE-2015-5082
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 · uneditedEndian Firewall before 3.0 allows remote attackers to execute arbitrary commands via shell metacharacters in the (1) NEW_PASSWORD_1 or (2) NEW_PASSWORD_2 parameter to cgi-bin/chpasswd.cgi.
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 confidenceEndian Firewall before version 3.0 contains a command injection vulnerability in the chpasswd.cgi web script. The NEW_PASSWORD_1 and NEW_PASSWORD_2 parameters are not properly sanitized, allowing attackers to inject shell metacharacters and execute arbitrary OS commands remotely 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<= 2.5.1CVSS 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
- 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.
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Confirm Endian Firewall installationCheck for Endian Firewall by reviewing system identification files, running 'cat /etc/redhat-release' or 'cat /etc/issue', or checking for /var/log/efw directory structure commonly found on Endian systemsAffected if The system is not identified as an Endian Firewall installation
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Identify installed Endian Firewall versionRun 'rpm -q endian-firewall' or check version files in /usr/lib/efw/ directory, or access the web interface and check the system information pageAffected if The installed version is 2.5.1 or any version <= 2.5.1
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Locate the chpasswd.cgi scriptSearch for the presence of chpasswd.cgi in the web root directories, typically found in /var/www/cgi-bin/ or /usr/local/httpd/cgi-bin/ on Endian systemsAffected if The chpasswd.cgi script exists on the system in the expected CGI directories
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Verify password change interface is accessibleAttempt to access the chpasswd.cgi via HTTP/HTTPS (e.g., GET request to the CGI endpoint) or check if the web service is running and the CGI module is enabledAffected if The web interface and chpasswd.cgi script are accessible over the network
A system is affected if it is running Endian Firewall version 2.5.1 or lower with the chpasswd.cgi web script accessible, allowing remote command injection through the NEW_PASSWORD parameters.
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 to Endian Firewall 3.0 or later to obtain the patched version. If immediate patching is not feasible, restrict network access to the affected CGI interface via firewall rules or disable the password change functionality until upgrade can be completed.
Endian Firewall 3.0 or later
- Download Endian Firewall version 3.0 or later from the official Endian network
- Back up all current configuration and data
- Perform a fresh installation or follow Endian's documented upgrade procedure to version 3.0
- Verify the upgrade was successful and the chpasswd.cgi interface functions correctly
- Test that the NEW_PASSWORD_1 and NEW_PASSWORD_2 parameters no longer accept shell metacharacters
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2015-5082 — 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-2015-5082 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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