Webex Meetings ServerApplication · Cisco
CVE-2017-3796
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 · uneditedA vulnerability in Cisco WebEx Meetings Server could allow an authenticated, remote attacker to execute predetermined shell commands on other hosts. More Information: CSCuz03353. Known Affected Releases: 2.6.
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 confidenceA command injection vulnerability in Cisco WebEx Meetings Server allows an authenticated remote attacker to execute predetermined shell commands on other hosts within the network. The attacker must have valid authentication credentials to exploit this flaw, which enables lateral movement through the environment by executing arbitrary shell commands.
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
Webex Meetings ServerApplication
= 2.6.0CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:H/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 checksWork through these to decide whether this CVE applies to you.
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Identify Cisco WebEx Meetings Server versionAccess the administrative web interface or check system documentation for the installed version number. Typically found in the About or System Information section of the management portal.Affected if The installed version is exactly 2.6.0
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Confirm the product is Cisco WebEx Meetings ServerVerify the running application is specifically Cisco WebEx Meetings Server and not another Cisco WebEx product (such as WebEx Meetings Online or WebEx Node). Check the product name in the web interface header or service documentation.Affected if The product is Cisco WebEx Meetings Server version 2.6.0
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Determine if remote administrative access is enabledCheck if the WebEx administrative interface is accessible from network segments outside the trusted internal network. Review firewall rules or network ACLs permitting access to the management ports (typically 443/HTTPS).Affected if The administrative interface is exposed to untrusted networks and the version is 2.6.0
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Verify user authentication is configuredConfirm that local or remote user accounts exist in the WebEx Meetings Server. The vulnerability requires valid authentication credentials to exploit.Affected if The system accepts authentication and the version is 2.6.0
You are affected if Cisco WebEx Meetings Server version 2.6.0 is installed and the administrative interface is network-accessible with valid user accounts configured.
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 the vendor patch for CSCuz03353 or upgrade to a non-vulnerable release of Cisco WebEx Meetings Server. Additionally, restrict administrative access to trusted IP addresses and implement network segmentation to limit lateral movement capabilities.
Fix this in Webex Meetings Server
Scoped from the published advisory
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-3796 — 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-2017-3796 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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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
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