Mediant 500l Msbr FirmwareOperating system · Audiocodes

CVE-2019-9230

MEDIUM · 6.1 CVSS v3.0 Published 2019-07-18
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
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
An issue was discovered on AudioCodes Mediant 500L-MSBR, 500-MBSR, M800B-MSBR and 800C-MSBR devices with firmware versions F7.20A to F7.20A.253. A cross-site scripting (XSS) vulnerability in the search function of the management web interface allows remote attackers to inject arbitrary web script or HTML via the keyword parameter.

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

A stored cross-site scripting (XSS) vulnerability exists in the search function of the management web interface on AudioCodes Mediant 500L-MSBR, 500-MBSR, M800B-MSBR, and 800C-MSBR devices running firmware versions F7.20A through F7.20A.253. The vulnerability allows remote attackers to inject arbitrary JavaScript or HTML code via the unsanitized keyword parameter in the search functionality.

MitigationUpgrade the device firmware to a version newer than F7.20A.253, which should contain proper input validation and output encoding for the search parameter. If an upgrade is not immediately possible, implement Web Application Firewall (WAF) rules to filter malicious XSS payloads in the keyword parameter.

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
Mediant 500l Msbr FirmwareOperating system
Affected:>= f7.20a, <= f7.20a.253
Mediant 500 Mbsr FirmwareOperating system
Affected:>= f7.20a, <= f7.20a.253
Mediant M800b Msbr FirmwareOperating system
Affected:>= f7.20a, <= f7.20a.253
Mediant 800c Msbr FirmwareOperating system
Affected:>= f7.20a, <= f7.20a.253

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
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 the device model
    Access the device management interface or use SNMP/CLI to retrieve the hardware model identifier. Look for model numbers 500L-MSBR, 500-MBSR, M800B-MSBR, or 800C-MSBR.
    Affected if The device is one of these four models: Mediant 500L-MSBR, 500-MBSR, M800B-MSBR, or 800C-MSBR
  2. Check the installed firmware version
    Navigate to the device web interface Status or About page, or use the CLI command 'show version' or 'software info' to retrieve the firmware version string.
    Affected if The firmware version is between F7.20A and F7.20A.253 inclusive
  3. Verify the management web interface is enabled
    Check the device network configuration settings via CLI or web interface to confirm that the HTTP/HTTPS management service is enabled and accessible from your network.
    Affected if The management web interface is enabled and reachable
  4. Confirm search functionality access
    Log into the management web interface and locate the search function. This is typically found in the administration or monitoring sections of the interface.
    Affected if The search functionality is present and accessible to authenticated users

The environment is affected if the device is a Mediant 500L-MSBR, 500-MBSR, M800B-MSBR, or 800C-MSBR running firmware F7.20A through F7.20A.253 with the management web interface and search function enabled.

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 the device firmware to a version newer than F7.20A.253, which should contain proper input validation and output encoding for the search parameter. If an upgrade is not immediately possible, implement Web Application Firewall (WAF) rules to filter malicious XSS payloads in the keyword parameter.

Fix this in Mediant 500l Msbr Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,080
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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-2019-9230 in production — separate from our analysis above.

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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
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  • Version or environment caveats, and links to real fixes
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