# What is CVE-2018-14997?

> CVE-2018-14997 is a medium-severity flaw (CVSS 5.5) in P1 Firmware from Leagoo, published on 25 April 2019. 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 0.4%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2018-14997

## 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:** 18 out of 100 (Info); action: Track. Kept up to date as the evidence changes.
- **Severity:** Medium (CVSS 5.5 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:** 0.4% (latest exploit-likelihood forecast)
- **Published:** 25 April 2019
- **Record last updated:** 3 October 2019
- **Main product:** P1 Firmware from Leagoo
- **Affected products:** 2

## What is CVE-2018-14997? In plain terms

An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data.

### The official description

The Leagoo P1 Android device with a build fingerprint of sp7731c_1h10_32v4_bird:6.0/MRA58K/android.20170629.214736:user/release-keys contains the android framework (i.e., system_server) with a package name of android that has been modified by Leagoo or another entity in the supply chain. The system_server process in the core Android package has an exported broadcast receiver that allows any app co-located on the device to programmatically initiate the taking of a screenshot and have the resulting screenshot be written to external storage. The taking of a screenshot is not transparent to the user; the device has a screen animation as the screenshot is taken and there is a notification indicating that a screenshot occurred. If the attacking app also requests the EXPAND_STATUS_BAR permission, it can wake the device up using certain techniques and expand the status bar to take a screenshot of the user's notifications even if the device has an active screen lock. The notifications may contain sensitive data such as text messages used in two-factor authentication. The system_server process that provides this capability cannot be disabled, as it is part of the Android framework. The notification can be removed by a local Denial of Service (DoS) attack to reboot the device.

### What kind of flaw is it?

- CWE-862: Missing Authorization

### How an attack on it works

- Where an attacker can be: Already on the device
- How hard it is to pull off: Easy: no special conditions
- Login needed first: An ordinary user account
- Does someone have to click: No, nobody has to do anything
- What an attacker gets: Can read data

Severity vector: `CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`

## Is CVE-2018-14997 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 0.4%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%, 0.4%.

### Timeline

- 25 April 2019: Published
- 3 October 2019: Record last updated

### How Precursor Intelligence ranks it

CVE-2018-14997 scores **18 out of 100 (Info)**, with the action "Track".

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-2018-14997?

The published record lists 2 products.

- [P1 Firmware](https://www.precursorintelligence.com/product/leagoo/p1_firmware) by [Leagoo](https://www.precursorintelligence.com/vendors/leagoo) (Operating system): version not specified
- [P1](https://www.precursorintelligence.com/product/leagoo/p1) by [Leagoo](https://www.precursorintelligence.com/vendors/leagoo) (Hardware): version not specified

## How do I fix CVE-2018-14997?

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 latest update from the vendor. The references list where the vendor has published details.
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

- [kryptowire.com](https://www.kryptowire.com) (Third-party advisory)
- [kryptowire.com](https://www.kryptowire.com/portal/android-firmware-defcon-2018/) (Third-party advisory)
- [kryptowire.com](https://www.kryptowire.com/portal/wp-content/uploads/2018/12/DEFCON-26-Johnson-and-Stavrou-Vulnerable-Out-of-the-Box-An-Eval-of-Android-Carrier-Devices-WP-Updated.pdf) (Technical description, Third-party advisory)

## Questions

### What is CVE-2018-14997?

CVE-2018-14997 is a medium-severity flaw in P1 Firmware from Leagoo, published on 25 April 2019. An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data.

### How serious is CVE-2018-14997?

It scores 5.5 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2018-14997 is 18 out of 100, which is Info. Its action is "Track". No sign of exploitation and a low forecast. Patch it in your normal update cycle.

### Is CVE-2018-14997 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 0.4%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2018-14997 affect?

For P1 Firmware from Leagoo: version not specified. The record lists 2 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2018-14997?

Install the update the vendor names in its advisory. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.

## Does CVE-2018-14997 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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