CVE-2017-8191
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 · uneditedFusionSphere OpenStack V100R006C00SPC102(NFV)has a week cryptographic algorithm vulnerability. Attackers may exploit the vulnerability to crack the cipher text and cause information leak on the transmission links.
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 confidenceFusionSphere OpenStack V100R006C00SPC102(NFV) contains a weak cryptographic algorithm vulnerability in its data transmission mechanism. Attackers can exploit this weakness to crack encrypted data in transit, leading to potential information disclosure. The vulnerability affects the cryptographic protection of network communications.
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= v100r006c00spc102\(nfv\)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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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 the installed FusionSphere OpenStack versionAccess the FusionSphere OpenStack management portal or use the system version command (e.g., 'openstack version' or check the About section in the management interface) and confirm the exact version is v100r006c00spc102 with the NFV variantAffected if The installed version is exactly v100r006c00spc102(nfv)
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Inspect SSL/TLS protocol configurationReview the SSL/TLS configuration files and settings for network communication services. Look for the enabled protocol versions (e.g., SSLv2, SSLv3, TLS 1.0, TLS 1.1) in the configuration files or management consoleAffected if SSLv2, SSLv3, or TLS 1.0/1.1 are enabled or listed as supported protocols
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Review cipher suite configurationExamine the cipher suite settings for network transmission services. Check which encryption ciphers are configured (e.g., NULL, export-grade ciphers, RC4, 3DES, MD5-based ciphers)Affected if Weak or export-grade ciphers (e.g., RC4, 3DES, NULL, MD5-based) are enabled or listed as preferred
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Check for deprecated cryptographic algorithmsSearch configuration files and running services for references to deprecated algorithms such as DES, RC4, MD5, or SHA1 used for encryption or integrity in network communicationsAffected if Deprecated or known-weak algorithms are configured for encrypting network traffic
You are affected if your system runs FusionSphere OpenStack v100r006c00spc102(nfv) AND weak cryptographic algorithms or protocols (SSLv2/v3, TLS 1.0/1.1, weak ciphers) are enabled in your network transmission configuration.
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 dataReplace weak cryptographic algorithms with industry-standard strong algorithms (e.g., AES-256, TLS 1.2+) and review all transmission paths for proper encryption configuration.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-8191 — 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-2017-8191 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
- No spam, self-promotion, credentials, or personal data