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Isa 3000 FirmwareOperating system · Cisco

CVE-2022-20829

HIGH · 7.2 CVSS v3.1 Published 2022-06-24
Fix available
A fix is available. Upgrade to 7.18.1.150 / 9.18.2 or later.
See remediation →
78/100
Remediation priority · High
Public exploit 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 vulnerability in the packaging of Cisco Adaptive Security Device Manager (ASDM) images and the validation of those images by Cisco Adaptive Security Appliance (ASA) Software could allow an authenticated, remote attacker with administrative privileges to upload an ASDM image that contains malicious code to a device that is running Cisco ASA Software. This vulnerability is due to insufficient validation of the authenticity of an ASDM image during its installation on a device that is running Cisco ASA Software. An attacker could exploit this vulnerability by installing a crafted ASDM image on the device that is running Cisco ASA Software and then waiting for a targeted user to access that device using ASDM. A successful exploit could allow the attacker to execute arbitrary code on the machine of the targeted user with the privileges of that user on that machine. Notes: To successfully exploit this vulnerability, the attacker must have administrative privileges on the device that is running Cisco ASA Software. Potential targets are limited to users who manage the same device that is running Cisco ASA Software using ASDM. Cisco has released and will release software updates that address this vulnerability.

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

A detailed technical summary for this CVE is being prepared.

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
Isa 3000 FirmwareOperating system
Affected:< 9.18.2
Asa 5585 X FirmwareOperating system
Affected:< 9.18.2
Asa 5512 X FirmwareOperating system
Affected:< 9.18.2
Asa 5515 X FirmwareOperating system
Affected:< 9.18.2
Adaptive Security Device ManagerApplication
Affected:< 7.18.1.150

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

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 7.18.1.150 / 9.18.2 or later
Fixed in 7.18.1.1509.18.2
Recommended fix High confidence

ASA/ISA firmware: 9.18.2 or later | ASDM: 7.18.1.150 or later

  1. Verify current firmware version on the ASA/ISA device using 'show version' command
  2. Verify current ASDM version using 'show asdm image' command
  3. Download the fixed ASA/ISA firmware version 9.18.2 or later from Cisco.com
  4. Download the fixed ASDM version 7.18.1.150 or later from Cisco.com
  5. Upload the new ASA/ISA firmware to the device using 'copy tftp://<server>/<image> flash:'
  6. Configure the device to boot to the new image using 'boot system flash:/<new-image-name>'
  7. Upload the new ASDM image to the device using 'copy tftp://<server>/<asdm-image> flash:'
  8. Configure the new ASDM image using 'asdm image flash:/<asdm-image-name>'
Caveat Review Cisco release notes for 9.18.x for any configuration changes or deprecated features before upgrading

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

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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-2022-20829 in production — separate from our analysis above.

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  • Version or environment caveats, and links to real fixes
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