OpenstackApplication · Redhat
CVE-2013-2255
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 · uneditedHTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.
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 confidenceOpenStack Keystone and Compute components (2013 versions) fail to validate SSL server certificates during HTTPS connections, allowing man-in-the-middle attackers to intercept encrypted traffic by presenting fraudulent certificates.
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
OpenstackApplication
= 3.0= 4.0
Debian LinuxOperating system
= 8.0= 9.0= 10.0= 2013.1= 2013CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/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 OpenStack Compute versionRun 'nova-manage --version' or check installed nova package version (e.g., rpm -q nova-compute, dpkg -l nova-compute)Affected if Installed version is exactly 2013.1 (or matches the 2013.1 release line)
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Identify Keystone versionRun 'keystone-manage --version' or check installed keystone package version (e.g., rpm -q python-keystone, dpkg -l python-keystone)Affected if Installed version is exactly 2013 (or matches the 2013 release line)
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Check OS environment for insecure SSL settingsInspect environment variables for OS_INSECURE=true, GLANCE_INSECURE=true, NOVA_INSECURE=true, or similar flags that disable certificate verificationAffected if Any OpenStack client environment variable is set to disable SSL certificate validation (value contains 'true', '1', or 'False' misconfigured)
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Check OpenStack service configurations for SSL verification settingsSearch config files (typically in /etc/nova, /etc/keystone, /etc/glance) for 'insecure = True', 'ssl_completion = False', 'verify_ssl = False', or 'cert_verify = False' settingsAffected if Configuration files contain settings that disable SSL certificate verification for HTTPS connections
A user is affected if they run the specific vulnerable versions (2013 for Keystone, 2013.1 for Compute) OR if SSL certificate validation is explicitly disabled in their environment configuration or environment variables.
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 dataEnable and enforce SSL certificate validation in all HTTPS client implementations within OpenStack components; ensure proper trust chain verification, hostname validation, and revocation checking are enabled.
Fix this in Openstack
Scoped from the published advisory
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $12,352.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2013-2255 — 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-2013-2255 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