CVE-2012-2201
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 · uneditedIBM WebSphere MQ 7.1 is vulnerable to a denial of service, caused by an error when handling user ids. A remote attacker could exploit this vulnerability to bypass the security configuration setup on a SVRCONN channel and flood the queue manager.
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 confidenceIBM WebSphere MQ 7.1 contains a vulnerability in the SVRCONN channel where improper handling of user IDs allows remote attackers to bypass security configurations. This enables an attacker to flood the queue manager with requests, causing denial of service conditions.
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= 7.1CVSS 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
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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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Confirm WebSphere MQ versionRun 'dspmqver' command or check the installation directory for version information. On Windows, check the program files IBM WebSphere MQ version. On Linux/UNIX, run 'mqversion' or inspect /opt/mqm/ install.cfgAffected if The installed version is exactly 7.1 (any fix pack within the 7.1 release line)
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Identify SVRCONN channel definitionsUse the runmqsc command to list channel definitions: 'DISPLAY CHANNEL(SVRCONN)' or check the queue manager's channel configuration files for any defined SVRCONN type channelsAffected if Any SVRCONN channels are defined in the queue manager configuration
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Check SVRCONN channel accessibilityExamine the SVRCONN channel attributes, specifically the MCAUSER setting and any CHLAUTH (channel authentication) rules. Use 'DISPLAY CHANNEL(SVRCONN) ALL' in runmqsc to view complete configurationAffected if SVRCONN channels are configured with default MCAUSER (blank) or allow connections from untrusted network addresses without strict CHLAUTH rules
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Verify listener statusCheck if a listener is running that accepts connections on the SVRCONN channels. Use 'DISPLAY LSSTATUS(*)' and 'DISPLAY CHSTATUS(*)' commands in runmqsc to see active listeners and channel statusesAffected if A listener is active and accepting connections on ports that SVRCONN channels use
You are affected if you run WebSphere MQ version 7.1 with accessible SVRCONN channels that lack strict channel authentication controls.
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 dataApply the IBM WebSphere MQ 7.1 fix pack that addresses this vulnerability (contact IBM for specific patch availability). Additionally, restrict SVRCONN channel access through channel authentication records and firewall rules to limit exposure.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-2201 — 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-2012-2201 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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