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Reprise License ManagerApplication · Reprisesoftware

CVE-2021-37499

MEDIUM · 6.5 CVSS v3.1 Published 2023-01-20
Fix available
A fix is available. Upgrade to 17.0 or later.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable No privileges

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
CRLF vulnerability in Reprise License Manager (RLM) web interface through 14.2BL4 in the password parameter in View License Result function, that allows remote attackers to inject arbitrary HTTP headers.

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 confidence

CRLF injection vulnerability in Reprise License Manager web interface allows remote attackers to inject arbitrary HTTP headers via the password parameter in the View License Result function. The application fails to sanitize CRLF characters (%0D%0A), enabling HTTP response splitting attacks that could lead to session hijacking or cross-site scripting.

MitigationApply vendor patches for RLM 14.2BL4 or later; implement input validation to reject CRLF characters in the password parameter; consider WAF rules to detect and block CRLF injection attempts.

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
Reprise License ManagerApplication
Affected:< 17.0

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
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

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

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

  1. Identify RLM web interface accessibility
    Determine if the Reprise License Manager web interface is exposed to network access. Check for port 5054 (default RLM web port) or custom configured HTTP port open to users/networks.
    Affected if The web interface is accessible and the View License Result function accepts user input.
  2. Determine installed RLM version
    Locate the RLM installation directory and check the version. Common locations: /opt/rlm (Linux) or C:\rlm (Windows). Look for version information in rlm.exe or use 'rlm -version' command if available. Check release notes or the RLM admin web interface for version display.
    Affected if The installed RLM version is below 17.0 (any version prior to 17.0 is affected).
  3. Verify View License Result function exists
    Access the RLM web interface and navigate to or identify the View License Result function. This function handles license file viewing and processing.
    Affected if The View License Result function is present and accessible via the web interface.
  4. Confirm password parameter handling
    Locate the password input field within the View License Result function. Inspect the form submission or API endpoint that processes the password parameter.
    Affected if The password parameter accepts user input without sanitizing CRLF characters (%0D%0A).

If RLM version is below 17.0 and the web interface with the View License Result function is accessible, the environment is vulnerable to CRLF injection via the password parameter.

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.

dbcve · scoped
Upgrade available Upgrade to 17.0 or later
Fixed in 17.0
Interim mitigation

Apply vendor patches for RLM 14.2BL4 or later; implement input validation to reject CRLF characters in the password parameter; consider WAF rules to detect and block CRLF injection attempts.

Recommended fix Moderate confidence

Reprise License Manager 17.0

  1. 1. Identify the current installed version of Reprise License Manager (RLM) by checking the application or service information
  2. 2. Download Reprise License Manager version 17.0 or later from the official vendor (Reprise Software) or your licensed distribution channel
  3. 3. Review the vendor's upgrade documentation and release notes for version 17.0
  4. 4. Backup the existing RLM configuration, license files, and any custom settings
  5. 5. Stop the RLM service before performing the upgrade
  6. 6. Install version 17.0 of RLM following the vendor's installation instructions
  7. 7. Restore the backed-up configuration and license files to the new installation
  8. 8. Start the RLM service and verify the web interface is functioning correctly
Caveat Review vendor release notes for any configuration or compatibility changes between your current version and 17.0

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Reprise License Manager Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,984.

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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-2021-37499 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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