# What is CVE-2022-0018?

> CVE-2022-0018 is a medium-severity flaw (CVSS 6.5) in Globalprotect from Palo Alto Networks, published on 10 February 2022. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 0.7%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2022-0018

## At a glance

- **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle.
- **Precursor Intelligence risk score:** 25 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 6.5 out of 10)
- **Known to be exploited:** No, not on the list of flaws known to be exploited today
- **Chance of use in the next 30 days:** 0.7% (latest exploit-likelihood forecast)
- **Published:** 10 February 2022
- **Record last updated:** 17 February 2022
- **Main product:** Globalprotect from Palo Alto Networks
- **Affected products:** 3

## What is CVE-2022-0018? In plain terms

It can be attacked from anywhere on the internet without logging in, but a person has to take an action first. If it works, the attacker can read data.

### The official description

An information exposure vulnerability exists in the Palo Alto Networks GlobalProtect app on Windows and MacOS where the credentials of the local user account are sent to the GlobalProtect portal when the Single Sign-On feature is enabled in the GlobalProtect portal configuration. This product behavior is intentional and poses no security risk when connecting to trusted GlobalProtect portals configured to use the same Single Sign-On credentials both for the local user account as well as the GlobalProtect login. However when the credentials are different, the local account credentials are inadvertently sent to the GlobalProtect portal for authentication. A third party MITM type of attacker cannot see these credentials in transit. This vulnerability is a concern where the GlobalProtect app is deployed on Bring-your-Own-Device (BYOD) type of clients with private local user accounts or GlobalProtect app is used to connect to different organizations. Fixed versions of GlobalProtect app have an app setting to prevent the transmission of the user's local user credentials to the target GlobalProtect portal regardless of the portal configuration. This issue impacts: GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.10 on Windows and MacOS; GlobalProtect app 5.2 versions earlier than GlobalProtect app 5.2.9 on Windows and MacOS This issue does not affect GlobalProtect app on other platforms.

### What kind of flaw is it?

- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-201: Insertion of Sensitive Information Into Sent Data

### How an attack on it works

- Where an attacker can be: Anywhere on the internet
- How hard it is to pull off: Easy: no special conditions
- Login needed first: No login needed
- Does someone have to click: Yes, a person has to take an action
- What an attacker gets: Can read data

Severity vector: `CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`

## Is CVE-2022-0018 being exploited? Not that we know of

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.7%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 0.7%, 0.7%, 0.7%, 0.7%, 0.7%, 0.7%, 0.7%.

### Timeline

- 10 February 2022: Published
- 17 February 2022: Record last updated

### How Precursor Intelligence ranks it

CVE-2022-0018 scores **25 out of 100 (Low)**, with the action "Monitor".

Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less:

- Evidence it is being exploited: biggest factor
- How severe it is: strong factor
- How widely exposed it is: smaller factor
- Threat activity around it: smaller factor

85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it.

## Who is affected by CVE-2022-0018?

The published record lists 3 products. Versions are as published: "5.1 to before 5.1.10" means from 5.1 up to, but not including, 5.1.10.

- [Globalprotect](https://www.precursorintelligence.com/product/paloaltonetworks/globalprotect) by [Palo Alto Networks](https://www.precursorintelligence.com/vendors/paloaltonetworks) (Application): 5.1 to before 5.1.10, 5.2 to before 5.2.9
- [macOS](https://www.precursorintelligence.com/product/apple/macos) by [Apple](https://www.precursorintelligence.com/vendors/apple) (Operating system): version not specified
- [Windows](https://www.precursorintelligence.com/product/microsoft/windows) by [Microsoft](https://www.precursorintelligence.com/vendors/microsoft) (Operating system): version not specified

## How do I fix CVE-2022-0018?

1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list.
2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list.
3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood.

### References

- [security.paloaltonetworks.com](https://security.paloaltonetworks.com/CVE-2022-0018) (Mitigation, Vendor advisory)

## Questions

### What is CVE-2022-0018?

CVE-2022-0018 is a medium-severity flaw in Globalprotect from Palo Alto Networks, published on 10 February 2022. It can be attacked from anywhere on the internet without logging in, but a person has to take an action first. If it works, the attacker can read data.

### How serious is CVE-2022-0018?

It scores 6.5 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2022-0018 is 25 out of 100, which is Low. Its action is "Monitor". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2022-0018 being exploited?

It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.7%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2022-0018 affect?

For Globalprotect from Palo Alto Networks: 5.1 to before 5.1.10, 5.2 to before 5.2.9. The record lists 3 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2022-0018?

Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2022-0018 affect you?

Precursor Intelligence keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

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