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AppresponseApplication · Riverbed

CVE-2021-43271

MEDIUM · 6.8 CVSS v3.1 Published 2022-06-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable

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 · unedited
Riverbed AppResponse 11.8.0, 11.8.5, 11.8.5a, 11.9.0, 11.9.0a, 11.10.0, 11.11.0, 11.11.0a, 11.11.1, 11.11.1a, 11.11.5, and 11.11.5a (when configured to use local, RADIUS, or TACACS authentication) logs usernames and passwords if either is entered incorrectly. If a user enters an incorrect username and/or password when logging into the WebUI, these attempted credentials are included in an error message that is logged in the WebUI log file. A log entry does not appear if the username and password provided correctly match a valid set of credentials. This also does not happen if AppResponse is configured to use SAML authentication. The WebUI log file is included in subsequent diagnostic system dumps that are generated. (Only users with Full Control access to the System Configuration permission can generate system dumps. By default, only System Administrators have Full Control access to the System Configuration permission.)

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 confidence

Riverbed AppResponse versions 11.8.0-11.11.5a log plaintext usernames and passwords in the WebUI log file when users enter incorrect credentials during login. These logged credentials are then included in diagnostic system dumps that can be generated by users with Full Control access to System Configuration.

MitigationUpgrade to a patched version beyond 11.11.5a, or ensure diagnostic system dumps are restricted and monitored, or migrate to SAML authentication which is not affected.

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
AppresponseApplication
Affected:= 11.8.0= 11.8.5= 11.8.5a= 11.9.0= 11.9.0a= 11.10.0= 11.11.0= 11.11.0a= 11.11.1= 11.11.1a= 11.11.5= 11.11.5a

CVSS 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
High
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/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 checks

Work through these to decide whether this CVE applies to you.

  1. Check installed AppResponse version
    Run 'show version' or access the System Information page in the AppResponse WebUI to determine the exact version number
    Affected if The version matches one of the following: 11.8.0, 11.8.5, 11.8.5a, 11.9.0, 11.9.0a, 11.10.0, 11.11.0, 11.11.0a, 11.11.1, 11.11.1a, 11.11.5, or 11.11.5a
  2. Inspect WebUI log files for plaintext credentials
    Locate and review the WebUI log file (typically in /var/log/ or accessible via the WebUI logs section) and search for patterns containing username and password strings in plaintext
    Affected if Log entries contain plaintext usernames and passwords from failed login attempts
  3. Check for diagnostic system dumps
    Access the System Configuration diagnostics or support section in the WebUI and look for any generated system dump files, or check the filesystem for dump archives
    Affected if Diagnostic dumps exist and were generated after failed login attempts occurred
  4. Examine dump contents for sensitive data
    If diagnostic dumps exist, extract and search within them for plaintext credential strings matching login usernames and passwords
    Affected if Dump files contain plaintext username and password values from WebUI authentication events

You are affected if your AppResponse version is between 11.8.0 and 11.11.5a and either WebUI logs or diagnostic dumps contain plaintext credentials from failed login attempts.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade to a patched version beyond 11.11.5a, or ensure diagnostic system dumps are restricted and monitored, or migrate to SAML authentication which is not affected.

Fix this in Appresponse Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing3.0 h
  • Review / QA2.0 h
17.0 hours of engineering $3,050
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-43271 in production — separate from our analysis above.

No notes yet

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What this is

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What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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