Elastic Services ControllerApplication · Cisco

CVE-2017-6682

HIGH · 8.8 CVSS v3.0 Published 2017-06-13
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click

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 · unedited
A vulnerability in the ConfD CLI of Cisco Elastic Services Controllers could allow an authenticated, remote attacker to run arbitrary commands as the Linux tomcat user on an affected system. More Information: CSCvc76620. Known Affected Releases: 2.2(9.76).

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 confidence

Command injection vulnerability in the ConfD CLI of Cisco Elastic Services Controllers allows an authenticated, remote attacker to execute arbitrary commands as the Linux tomcat user on affected systems. The attacker needs valid credentials to access the CLI, but can then inject OS commands through insufficient input sanitization.

MitigationApply available Cisco software updates for the Elastic Services Controller. If no update is available, implement strict input validation and command whitelisting in the ConfD CLI, and restrict CLI access to minimal necessary personnel.

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
Elastic Services ControllerApplication
Affected:= 2.2\(9.76\)

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
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Cisco ESC version
    Log into the Cisco Elastic Services Controller and run 'show version' or check the installed package version using the system package manager. Alternatively, check the /opt/cisco/esc/esc_version file if it exists on the system.
    Affected if The installed version is exactly 2.2(9.76)
  2. Verify ConfD CLI is enabled
    Check if the ConfD CLI service is running and accessible. Look for the ConfD process using 'ps aux | grep confd' or check the configuration files in /etc/confd/ or /opt/cisco/confd/ directory.
    Affected if ConfD CLI process is running and the CLI port (typically 2024 or 2024) is open and listening
  3. Confirm CLI network accessibility
    Run 'netstat -tuln | grep -E "(2024|2024)"' or use 'ss -tuln' to check if the ConfD CLI port is exposed on a network interface. Verify if it binds to 0.0.0.0 or an external IP rather than localhost only.
    Affected if The ConfD CLI port is listening on a reachable network interface (not localhost only)
  4. Check for existing user accounts
    Review the ConfD CLI user database or AAA configuration to enumerate valid user accounts. Check /etc/passwd for tomcat user and verify if ConfD users exist with administrative privileges.
    Affected if There are active ConfD CLI user accounts with valid credentials (the vulnerability requires authenticated access)

A system is affected if it runs Cisco Elastic Services Controller version 2.2(9.76) AND has the ConfD CLI enabled and network-accessible, allowing an attacker with valid credentials to inject commands.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply available Cisco software updates for the Elastic Services Controller. If no update is available, implement strict input validation and command whitelisting in the ConfD CLI, and restrict CLI access to minimal necessary personnel.

Fix this in Elastic Services Controller Scoped from the published advisory
  • Consultation6.0 h
  • Implementation12.0 h
  • Testing8.0 h
  • Review / QA4.0 h
30.0 hours of engineering $5,280
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-6682 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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