CVE-2022-20826
What it is
A vulnerability in the secure boot implementation of Cisco Secure Firewalls 3100 Series that are running Cisco Adaptive Security Appliance (ASA) Software or Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated attacker with physical access to the device to bypass the secure boot functionality. This vulnerability is due to a logic error in the boot process. An attacker could exploit this vulnerability by injecting malicious code into a specific memory location during the boot process of an affected device. A successful exploit could allow the attacker to execute persistent code at boot time and break the chain of trust.
At a glance
- Exploitability
- Can be exploited with physical access without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 6.4 MEDIUM (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-501
- Record status
- Modified
Affected
- Cisco Adaptive Security Appliance Software 9.17.1
- Cisco Adaptive Security Appliance Software 9.17.1.9
- Cisco Adaptive Security Appliance Software 9.17.1.10
- Cisco Adaptive Security Appliance Software 9.17.1.13
- Cisco Adaptive Security Appliance Software 9.18.1
- Cisco Adaptive Security Appliance Software 9.18.1.3
- Cisco Secure Firewall Threat Defense 7.1.0.0
- Cisco Secure Firewall Threat Defense 7.2.0.0
Attack profile CVSS 3.1 · 6.4
- Attack vector
- Physical
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-20826.md and follow it. Check whether this project is affected by CVE-2022-20826. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
