CVE-2011-5127
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 · uneditedDirectory traversal vulnerability in Blue Coat Reporter 9.x before 9.2.4.13, 9.2.5.x before 9.2.5.1, and 9.3 before 9.3.1.2 on Windows allows remote attackers to read arbitrary files, and consequently execute arbitrary code, via an unspecified HTTP request.
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 confidenceDirectory traversal vulnerability in Blue Coat Reporter on Windows allows remote attackers to traverse filesystem paths via unspecified HTTP requests to read arbitrary files, which can then be leveraged to execute arbitrary code.
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= 9.2.4.1= 9.2.4.12= 9.2.5= 9.3.1.1CVSS 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
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
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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Verify Blue Coat Reporter installation and versionLocate the Reporter installation directory and check the version. Common locations include C:\Program Files\Blue Coat\Reporter or check the application properties via Windows Programs and Features. The version is typically displayed in the application or in a version.txt file within the installation directory.Affected if The installed version matches 9.2.4.1, 9.2.4.12, 9.2.5, or 9.3.1.1 exactly.
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Confirm HTTP interface is accessibleAttempt to access the Reporter HTTP interface from a network location. The default port is typically 8080 or 8443. Check if the web interface responds to requests at http://hostname:port/reporter/ or similar paths.Affected if The HTTP interface is exposed and reachable from network locations, providing the attack vector for directory traversal.
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Review HTTP access logs for traversal patternsExamine the Reporter HTTP access logs, typically stored in the logs subdirectory within the installation path. Look for patterns such as '../' or '..\' in request URLs, or unusual file access patterns indicating attempts to read system files.Affected if Logs show HTTP requests containing directory traversal sequences or access to files outside the intended web root.
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Check for unauthorized file access indicatorsReview system event logs and Reporter application logs for evidence of access to sensitive system files (such as C:\Windows\System32\config\sam or other Windows system files) that should not be accessible through the web application.Affected if Logs or file system show evidence that arbitrary files outside the webroot were accessed through the Reporter HTTP interface.
You are affected if Blue Coat Reporter versions 9.2.4.1, 9.2.4.12, 9.2.5, or 9.3.1.1 are installed and the HTTP interface is network-accessible, as the directory traversal flaw allows remote attackers to read arbitrary files via crafted HTTP requests.
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.
dbcve · scopedUpgrade to Blue Coat Reporter 9.2.4.13, 9.2.5.1, 9.3.1.2 or later. If immediate upgrade is not feasible, restrict network access to the Reporter HTTP interface to trusted sources only.
9.2.4.13, 9.2.5.1, or 9.3.1.2 (or later stable release in respective branch)
- Identify the current installed version of Blue Coat Reporter (9.2.4.1, 9.2.4.12, 9.2.5, or 9.3.1.1)
- Download the appropriate fixed version from Blue Coat support portal: upgrade to 9.2.4.13 for 9.2.4.x branch, 9.2.5.1 for 9.2.5.x branch, or 9.3.1.2 (or later) for 9.3.x branch
- Review release notes for any specific upgrade prerequisites or procedures
- Perform a backup of the Reporter configuration and data directories
- Execute the upgrade installer following Blue Coat's standard upgrade procedure
- Verify the upgrade was successful by checking the Reporter version
- Confirm the vulnerability is remediated by testing that path traversal requests are no longer accepted
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-5127 — 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-2011-5127 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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- 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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