CVE-2010-0554
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 · uneditedThe HTTP Authentication implementation in Geo++ GNCASTER 1.4.0.7 and earlier uses the same nonce for all authentication, which allows remote attackers to hijack web sessions or bypass authentication via a replay attack.
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 confidenceThe HTTP Authentication implementation in Geo++ GNCASTER 1.4.0.7 and earlier uses a static/reused nonce value for all authentication requests instead of generating unique nonces per session or request. This allows attackers to capture valid authentication tokens and replay them to hijack sessions or bypass authentication entirely.
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<= 1.4.0.7= 1.4.0.0CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 Geo++ GNCASTER installation and versionLocate the GNCASTER installation directory and check the version information, typically found in the application binary, an About dialog, or a version file included with the installationAffected if The installed version is 1.4.0.7 or earlier, or specifically version 1.4.0.0
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Verify HTTP Authentication is enabledCheck the GNCASTER configuration files or running service settings to determine if HTTP Digest Authentication is configured and active for access to the serviceAffected if HTTP Authentication is enabled and being used to protect access to GNCASTER
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Capture and analyze authentication requestsUse a network capture tool to capture HTTP authentication requests sent to the GNCASTER server. Examine the WWW-Authenticate header in server responses and the Authorization header in client requests to observe the nonce value usedAffected if The same nonce value persists across multiple authentication sessions or repeated requests rather than changing with each new authentication attempt
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Test for replay vulnerabilityCapture a valid authentication token from one session and attempt to replay it in a new session or after the original session has expiredAffected if The replayed token is accepted and grants access, indicating the server does not validate nonce uniqueness or track used nonces
A user is affected if they are running Geo++ GNCASTER version 1.4.0.7 or earlier with HTTP Authentication enabled, and the server accepts replayed authentication tokens using a static nonce value.
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 dataUpgrade to a patched version of Geo++ GNCASTER that implements proper unique nonce generation per authentication request, or implement nonce validation that rejects previously used values.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2010-0554 — 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-2010-0554 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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- Version or environment caveats, and links to real fixes
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