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Adaptive Security Appliance SoftwareOperating system · Cisco

CVE-2010-4680

HIGH · 9.0 CVSS v2.0 Published 2011-01-07
Fix available
A fix is available. Upgrade to after 8.2 or later.
See remediation →
96/100
Remediation priority · Urgent
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
The WebVPN implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) permits the viewing of CIFS shares even when CIFS file browsing has been disabled, which allows remote authenticated users to bypass intended access restrictions via CIFS requests, aka Bug ID CSCsz80777.

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

The Cisco ASA WebVPN implementation allows authenticated remote users to bypass intended access restrictions by directly sending CIFS requests, even when CIFS file browsing has been explicitly disabled by an administrator. This enables unauthorized access to CIFS shares that should be blocked.

MitigationUpgrade Cisco ASA software to version 8.2(3) or later to address this access control bypass vulnerability in the WebVPN CIFS handling.

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
Adaptive Security Appliance SoftwareOperating system
Affected:<= 8.2\(2\)= 7.0= 7.0\(0\)= 7.0\(2\)= 7.0\(4\)= 7.0\(5\)= 7.0\(5.2\)= 7.0\(6.7\)= 7.0.1= 7.0.1.4= 7.0.2= 7.0.4
5500 Series Adaptive Security ApplianceHardware / appliance
Affected:all versions
Asa 5500Hardware / appliance
Affected:all versions

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
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:S/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. Identify ASA software version
    Run `show version` on the ASA CLI to retrieve the installed software version number.
    Affected if The version matches <= 8.2(2) or any of these: 7.0, 7.0(0), 7.0(2), 7.0(4), 7.0(5), 7.0(5.2), 7.0(6.7), 7.0.1, 7.0.1.4, 7.0.2, 7.0.4, or the device is a Cisco 5500 Series ASA (any version).
  2. Confirm WebVPN is enabled
    Run `show running-config webvpn` or examine the configuration for any `webvpn` context to see if WebVPN is currently configured and active.
    Affected if WebVPN is enabled and configured on the device.
  3. Check CIFS browsing configuration
    Run `show running-config | include cifs` to see if CIFS file browsing has been explicitly configured or disabled via the `cifs disabled` command under the WebVPN configuration.
    Affected if CIFS browsing is explicitly disabled in the configuration, which is the bypass condition for this vulnerability.
  4. Verify CIFS server configuration
    Run `show running-config | include cifs server` to identify any configured CIFS servers that are intended to be accessible through WebVPN.
    Affected if CIFS servers are defined in the WebVPN configuration.

A user is affected if the ASA runs an affected software version (8.2(2) or lower, specific 7.x versions, or is a 5500 Series) with WebVPN enabled, regardless of whether CIFS browsing is disabled.

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 a release after 8.2
Interim mitigation

Upgrade Cisco ASA software to version 8.2(3) or later to address this access control bypass vulnerability in the WebVPN CIFS handling.

Recommended fix High confidence

Cisco ASA Software 8.2(3) or later

  1. 1. Identify the current ASA software version by running 'show version' on the device
  2. 2. Download Cisco ASA software version 8.2(3) or later from the Cisco Software Download Center
  3. 3. Upload the new software image to the ASA using TFTP, FTP, or through the management interface
  4. 4. Configure the ASA to boot from the new image using 'boot system' command
  5. 5. Save the configuration with 'write memory'
  6. 6. Reload the ASA with 'reload' command
  7. 7. After reboot, verify the new version is running with 'show version' and confirm the WebVPN CIFS browsing restriction is now properly enforced
Caveat Upgrade may require configuration review; test in lab environment first as ASA software upgrades can change behavior

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

Fix this in Adaptive Security Appliance Software Scoped from the published advisory
  • Consultation8.0 h
  • Implementation4.0 h
  • Testing8.0 h
  • Review / QA4.0 h
24.0 hours of engineering $4,240
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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-2010-4680 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