CVE-2022-0022: PAN-OS: Use of a Weak Cryptographic Algorithm for Stored Password Hashes
First published: Wed Mar 09 2022(Updated: )
Usage of a weak cryptographic algorithm in Palo Alto Networks PAN-OS software where the password hashes of administrator and local user accounts are not created with a sufficient level of computational effort, which allows for password cracking attacks on accounts in normal (non-FIPS-CC) operational mode. An attacker must have access to the account password hashes to take advantage of this weakness and can acquire those hashes if they are able to gain access to the PAN-OS software configuration. Fixed versions of PAN-OS software use a secure cryptographic algorithm for account password hashes. This issue does not impact Prisma Access firewalls. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.21; All versions of PAN-OS 9.0; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11; PAN-OS 10.0 versions earlier than PAN-OS 10.0.7.
Credit: psirt@paloaltonetworks.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Palo Alto Networks PAN-OS | >=8.1.0<8.1.21 | |
| Palo Alto Networks PAN-OS | >=9.0.0<=9.0.15 | |
| Palo Alto Networks PAN-OS | >=9.1.0<9.1.11 | |
| Palo Alto Networks PAN-OS | >=10.0.0<10.0.7 |
Remedy
This issue is fixed in PAN-OS 8.1.21, PAN-OS 9.1.11, PAN-OS 10.0.7, and all later PAN-OS versions. The passwords for all existing local user and administrator accounts must be changed after PAN-OS is upgraded to a fixed version to leverage the more secure cryptography for password hashes. You cannot update existing password hashes. All new local user and administrator accounts will use secure cryptography. PAN-OS 9.0 is end-of-life as of March 1, 2022, and is no longer covered by our Product Security Assurance policies.
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Reference Links
Frequently Asked Questions
What is CVE-2022-0022?
CVE-2022-0022 refers to a vulnerability in Palo Alto Networks PAN-OS software that allows for password cracking attacks on administrator and local user accounts due to the usage of a weak cryptographic algorithm.
What is the severity of CVE-2022-0022?
CVE-2022-0022 has a severity score of 4.4, which is considered medium.
Which software versions are affected by CVE-2022-0022?
Palo Alto Networks PAN-OS versions 8.1.0 to 8.1.21, 9.0.0 to 9.0.15, 9.1.0 to 9.1.11, and 10.0.0 to 10.0.7 are affected by CVE-2022-0022.
How can the vulnerability be exploited?
The vulnerability can be exploited by conducting password cracking attacks on administrator and local user accounts.
Is there a fix available for CVE-2022-0022?
Yes, Palo Alto Networks released security updates to address the vulnerability. It is recommended to update to a fixed version of PAN-OS.
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