CVE-2011-5126
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 · uneditedBlue Coat ProxySG 6.1 before SGOS 6.1.5.1 and 6.2 before SGOS 6.2.2.1 writes the secure heap to core images, which allows context-dependent attackers to obtain sensitive authentication information by leveraging read access to a downloaded core file.
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 confidenceBlue Coat ProxySG versions prior to SGOS 6.1.5.1 and 6.2.2.1 write secure heap memory contents (containing authentication credentials) to core dump images. An attacker with read access to these core files can extract sensitive authentication information.
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= 6.1= 6.1.1.1= 6.1.2= 6.1.2.1= 6.2.2CVSS 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
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/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.
-
Determine the installed SGOS versionAccess the ProxySG management interface (web UI or CLI) and check the version displayed on the dashboard or use 'show version' command in CLIAffected if The version is 6.1.x prior to 6.1.5.1, or 6.2.x prior to 6.2.2.1, or specifically 6.1, 6.1.1.1, 6.1.2, 6.1.2.1, or 6.2.2 as listed in affected versions
-
Verify if core dump generation is enabledCheck the ProxySG configuration for core dump settings via CLI command 'show core-dump' or through the management interface under Maintenance > Core DumpAffected if Core dump functionality is enabled or has been used previously
-
Locate core dump files on the ProxySGAccess the ProxySG file system (via CLI 'dir' or management interface) and search for core dump files typically named with 'core' or '.dmp' extensions in system directoriesAffected if Core dump files exist on the system
-
Review access controls on core dump filesCheck file permissions on any found core dump files using 'ls -l' or equivalent in the ProxySG CLI to determine who can read these filesAffected if Core dump files have broad read permissions allowing unauthorized users to access them
You are affected if your ProxySG runs SGOS version prior to 6.1.5.1 or 6.2.2.1 AND core dump files exist or core dump functionality is enabled, allowing potential credential extraction from heap memory contents.
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 ProxySG to SGOS 6.1.5.1 or 6.2.2.1 or later. Additionally, restrict access to core dump files and implement strict access controls on the management interface.
- Consultation4.0 h
- Implementation3.0 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 $4,160.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-5126 — 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-2011-5126 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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