# What is CVE-2020-1878?

> CVE-2020-1878 is a medium-severity flaw (CVSS 5.5) in Oxfords-An00a from Huawei, published on 20 March 2020. 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 0.2%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2020-1878

## 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:** 19 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:** 0.2% (latest exploit-likelihood forecast)
- **Published:** 20 March 2020
- **Record last updated:** 3 February 2023
- **Main product:** Oxfords-An00a from Huawei
- **Affected products:** 2

## What is CVE-2020-1878? 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

Huawei smartphone OxfordS-AN00A with versions earlier than 10.0.1.152D(C735E152R3P3),versions earlier than 10.0.1.160(C00E160R4P1) have an improper authentication vulnerability. Authentication to target component is improper when device performs an operation. Attackers exploit this vulnerability to obtain some information by loading malicious application, leading to information leak.

### What kind of flaw is it?

- CWE-287: Improper Authentication

### 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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`

## Is CVE-2020-1878 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 0.2%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 0.2%, 0.2%, 0.2%, 0.2%, 0.2%, 0.2%, 0.2%.

### Timeline

- 20 March 2020: Published
- 3 February 2023: Record last updated

### How Precursor Intelligence ranks it

CVE-2020-1878 scores **19 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-2020-1878?

The published record lists 2 products. Versions are as published: "before 10.0.1.152d(c735e152r3p3)" means every version up to, but not including, 10.0.1.152d(c735e152r3p3).

- [Oxfords-An00a](https://www.precursorintelligence.com/product/huawei/oxfords-an00a) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Oxfords-An00a Firmware](https://www.precursorintelligence.com/product/huawei/oxfords-an00a_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): before 10.0.1.152d(c735e152r3p3), after 10.0.1.152d(c735e152r3p3) to before 10.0.1.160(c00e160r4p1)

## How do I fix CVE-2020-1878?

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

- [huawei.com](https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200311-01-informationleak-en) (Vendor advisory)
- [huawei.com](http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200415-02-dos-en) (Not applicable)

## Questions

### What is CVE-2020-1878?

CVE-2020-1878 is a medium-severity flaw in Oxfords-An00a from Huawei, published on 20 March 2020. 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-2020-1878?

It scores 5.5 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2020-1878 is 19 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-2020-1878 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 0.2%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2020-1878 affect?

For Oxfords-An00a from Huawei: 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-2020-1878?

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-2020-1878 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.

Start free (no card, nothing to install): https://www.precursorintelligence.com/register
Book a demo: https://www.precursorintelligence.com/contact