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Netsupport Manager ClientApplication · Netsupport

CVE-2007-5057

HIGH · 10.0 CVSS v2.0 Published 2007-09-24
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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
NetSupport Manager Client before 10.20.0004 allows remote attackers to bypass the (1) basic and (2) authentication schemes by spoofing the NetSupport 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 · high confidence

NetSupport Manager Client versions prior to 10.20.0004 contain a critical authentication bypass vulnerability. Remote attackers can spoof the NetSupport Manager client to circumvent both basic and secondary authentication mechanisms, allowing unauthorized access to the affected system.

MitigationUpgrade NetSupport Manager Client to version 10.20.0004 or later to remediate this vulnerability. Until upgraded, network access to NetSupport Manager services should be restricted to trusted sources.

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
Netsupport Manager ClientApplication
Affected:= 5.00= 5.01= 5.02= 5.02_f1= 5.03= 5.05= 5.30= 5.31= 6.00= 6.10= 6.11= 7.01

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
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

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. Confirm NetSupport Manager Client installation
    Look for NetSupport Manager Client software on the system through installed programs list (Windows Add/Remove Programs) or by searching for NetSupport-related executables and directories.
    Affected if NetSupport Manager Client is found on the system
  2. Identify installed version
    Check the version of NetSupport Manager Client through the program's properties (right-click executable, select Properties, view Version tab) or by using the command 'reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall /s | findstr NetSupport' to locate the installed version in the registry.
    Affected if Version matches any of the following: 5.00, 5.01, 5.02, 5.02_f1, 5.03, 5.05, 5.30, 5.31, 6.00, 6.10, 6.11, or 7.01
  3. Verify client service status
    Check if the NetSupport Manager Client service is running by opening Services (services.msc) and looking for NetSupport Manager Client service, or running 'net start' in command prompt to list running services.
    Affected if NetSupport Manager Client service is running and accepting connections
  4. Assess network exposure
    Determine if the NetSupport Manager Client port is accessible from untrusted networks. Check listening ports using 'netstat -an | findstr LISTENING' and identify the port NetSupport Manager uses (commonly TCP port 5405 by default).
    Affected if NetSupport Manager service port is bound to accessible network interfaces and reachable from untrusted networks

A system is affected if NetSupport Manager Client versions 5.00 through 7.01 are installed, the client service is running, and the service is network-accessible to untrusted sources.

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

Upgrade NetSupport Manager Client to version 10.20.0004 or later to remediate this vulnerability. Until upgraded, network access to NetSupport Manager services should be restricted to trusted sources.

Recommended fix High confidence

NetSupport Manager Client 10.20.0004 or later

  1. 1. Identify all systems running NetSupport Manager Client versions 5.00, 5.01, 5.02, or 5.02_f1
  2. 2. Verify the current installed version of NetSupport Manager Client on each affected system
  3. 3. Obtain the updated NetSupport Manager Client version 10.20.0004 or later from the official NetSupport software vendor (www.netsupportsoftware.com)
  4. 4. Before deploying, test the new version in a non-production environment to ensure compatibility with your systems
  5. 5. Deploy the upgrade to all affected clients, ensuring no older vulnerable versions remain installed
  6. 6. Verify the upgrade was successful by checking the new version number on each client
Caveat Review NetSupport Manager release notes for version 10.x as there may be feature or configuration changes between version 5.x and 10.x that could affect existing deployments

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

Fix this in Netsupport Manager Client Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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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-2007-5057 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
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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