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Web ApplianceApplication · Sophos

CVE-2022-4934

HIGH · 7.2 CVSS v3.1 Published 2023-04-04
Fix available
A fix is available. Upgrade to 4.3.10.4 or later.
See remediation →
78/100
Remediation priority · High
Remotely reachable 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
A post-auth command injection vulnerability in the exception wizard of Sophos Web Appliance older than version 4.3.10.4 allows administrators to execute arbitrary code.

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 post-authentication command injection vulnerability exists in the exception wizard component of Sophos Web Appliance versions prior to 4.3.10.4. An authenticated administrator can inject arbitrary commands through insufficient input validation in the exception wizard, leading to full system command execution.

MitigationUpgrade Sophos Web Appliance to version 4.3.10.4 or later to remediate this vulnerability. If immediate patching is not possible, restrict administrative access to trusted personnel and monitor for suspicious admin activity.

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
Web ApplianceApplication
Affected:< 4.3.10.4

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
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/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. Identify Sophos Web Appliance version
    Access the admin management interface or check system information pages for the installed Sophos Web Appliance version number
    Affected if The installed version is lower than 4.3.10.4 (e.g., 4.3.9.x, 4.3.8.x, etc.)
  2. Verify admin authentication status
    Confirm whether administrator credentials exist and the web admin interface is accessible on the appliance
    Affected if Administrative authentication is enabled and the web interface is reachable on the network
  3. Confirm exception wizard accessibility
    Navigate to or enumerate the exception wizard component within the Sophos Web Appliance admin console to determine if this feature is exposed
    Affected if The exception wizard component is accessible to authenticated administrators
  4. Review admin access controls
    Check the administrative user accounts and access control settings for the web appliance to identify the scope of privileged users
    Affected if Multiple or untrusted administrator accounts have access to the exception wizard component

You are affected if your Sophos Web Appliance version is prior to 4.3.10.4 and the exception wizard component is accessible to authenticated administrators.

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 4.3.10.4 or later
Fixed in 4.3.10.4
Interim mitigation

Upgrade Sophos Web Appliance to version 4.3.10.4 or later to remediate this vulnerability. If immediate patching is not possible, restrict administrative access to trusted personnel and monitor for suspicious admin activity.

Recommended fix High confidence

4.3.10.4 or later

  1. 1. Check the current version of Sophos Web Appliance by accessing the management interface and navigating to System > Maintenance > About
  2. 2. Confirm the installed version is below 4.3.10.4
  3. 3. Backup the current appliance configuration via System > Maintenance > Backup & Restore
  4. 4. Download the update package from the official Sophos support portal (www.sophos.com) for version 4.3.10.4 or later
  5. 5. Apply the upgrade through the web interface under System > Maintenance > System Upgrade, or via CLI if preferred
  6. 6. Verify the upgrade was successful by checking the version number in System > Maintenance > About
  7. 7. Test that the exception wizard functionality works correctly after upgrade
Caveat Standard upgrade - review Sophos release notes for any configuration or behavioral changes before applying

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

Fix this in Web Appliance Scoped from the published advisory
  • Consultation4.0 h
  • Implementation4.0 h
  • Testing4.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,480
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,968.

Scan for this in your stack

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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-2022-4934 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