# What is CVE-2017-17301?

> CVE-2017-17301 is a critical-severity flaw (CVSS 9.8) in Ar120-S from Huawei, published on 15 February 2018. 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 1.0%. If you run an affected version, plan in the vendor’s fix.

Canonical page: https://www.precursorintelligence.com/what-is/cve-2017-17301

## At a glance

- **Verdict:** Fix this soon. Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month.
- **Precursor Intelligence risk score:** 54 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes.
- **Severity:** Critical (CVSS 9.8 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:** 1.0% (latest exploit-likelihood forecast)
- **Published:** 15 February 2018
- **Record last updated:** 3 October 2019
- **Main product:** Ar120-S from Huawei
- **Affected products:** 56

## What is CVE-2017-17301? In plain terms

It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.

### The official description

Huawei AR120-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR1200 V200R005C20, V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, AR1200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR150 V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, AR160 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, AR200 V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R008C20, AR200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR2200 V200R005C20, V200R005C32, V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, AR2200-S V200R005C32, V200R006C10, V200R007C00, V200R008C20, AR3200 V200R005C32, V200R006C10, V200R006C11, V200R007C00, V200R007C01, V200R007C02, V200R008C00, V200R008C10, V200R008C20, V200R008C30, AR3600 V200R006C10, V200R007C00, V200R007C01, V200R008C20, AR510 V200R005C32, V200R006C10, V200R007C00, V200R008C20, CloudEngine 12800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00, V200R001C00, CloudEngine 5800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00, V200R001C00, CloudEngine 6800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00, V200R001C00, CloudEngine 7800 V100R003C00, V100R003C10, V100R005C00, V100R005C10, V100R006C00, V200R001C00, DP300 V500R002C00, SMC2.0 V100R003C10, V100R005C00, V500R002C00, SRG1300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, SRG2300 V200R005C32, V200R006C10, V200R007C00, V200R007C02, V200R008C20, SRG3300 V200R005C32, V200R006C10, V200R007C00, V200R008C20, TE30 V100R001C10, TE60 V100R003C00, V500R002C00, VP9660 V200R001C02, V200R001C30, V500R002C00, ViewPoint 8660 V100R008C02, V100R008C03, eSpace IAD V300R002C01, eSpace U1981 V200R003C20, V200R003C30, eSpace USM V100R001C01, V300R001C00 have a weak cryptography vulnerability. Due to not properly some values in the certificates, an unauthenticated remote attacker could forges a specific RSA certificate and exploits the vulnerability to pass identity authentication and logs into the target device to obtain permissions configured for the specific user name.

### What kind of flaw is it?

- CWE-295: Improper Certificate Validation

### 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: No, nobody has to do anything
- What an attacker gets: Can read data, change data and take it offline

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

## Is CVE-2017-17301 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 1.0%. That can change at any time, which is why we keep watching.

Exploit likelihood over the last 7 days: 1.0%, 1.0%, 1.0%, 1.0%, 1.0%, 1.0%, 1.0%.

### Timeline

- 15 February 2018: Published
- 3 October 2019: Record last updated

### How Precursor Intelligence ranks it

CVE-2017-17301 scores **54 out of 100 (Medium)**, with the action "Plan remediation".

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-2017-17301?

The published record lists 56 products.

- [Ar120-S](https://www.precursorintelligence.com/product/huawei/ar120-s) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar3200 Firmware](https://www.precursorintelligence.com/product/huawei/ar3200_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r006c11, v200r007c00, v200r007c01, v200r007c02, v200r008c00, v200r008c10, v200r008c20, v200r008c30
- [Ar1200 Firmware](https://www.precursorintelligence.com/product/huawei/ar1200_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c20, v200r005c32, v200r006c10, v200r007c00, v200r007c01, v200r007c02, v200r008c20
- [Ar2200 Firmware](https://www.precursorintelligence.com/product/huawei/ar2200_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c20, v200r005c32, v200r006c10, v200r007c00, v200r007c01, v200r007c02, v200r008c20
- [Ar160 Firmware](https://www.precursorintelligence.com/product/huawei/ar160_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r007c01, v200r007c02, v200r008c20
- [Cloudengine 12800 Firmware](https://www.precursorintelligence.com/product/huawei/cloudengine_12800_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r003c00, v100r003c10, v100r005c00, v100r005c10, v100r006c00, v200r001c00
- [Cloudengine 5800 Firmware](https://www.precursorintelligence.com/product/huawei/cloudengine_5800_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r003c00, v100r003c10, v100r005c00, v100r005c10, v100r006c00, v200r001c00
- [Cloudengine 6800 Firmware](https://www.precursorintelligence.com/product/huawei/cloudengine_6800_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r003c00, v100r003c10, v100r005c00, v100r005c10, v100r006c00, v200r001c00
- [Cloudengine 7800 Firmware](https://www.precursorintelligence.com/product/huawei/cloudengine_7800_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r003c00, v100r003c10, v100r005c00, v100r005c10, v100r006c00, v200r001c00
- [Ar150 Firmware](https://www.precursorintelligence.com/product/huawei/ar150_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r006c10, v200r007c00, v200r007c01, v200r007c02, v200r008c20
- [Ar200 Firmware](https://www.precursorintelligence.com/product/huawei/ar200_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r007c01, v200r008c20
- [Ar200-S Firmware](https://www.precursorintelligence.com/product/huawei/ar200-s_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r007c01, v200r008c20
- [Srg1300 Firmware](https://www.precursorintelligence.com/product/huawei/srg1300_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r007c02, v200r008c20
- [Srg2300 Firmware](https://www.precursorintelligence.com/product/huawei/srg2300_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r007c02, v200r008c20
- [Ar120-S Firmware](https://www.precursorintelligence.com/product/huawei/ar120-s_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r008c20
- [Ar1200-S Firmware](https://www.precursorintelligence.com/product/huawei/ar1200-s_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r008c20
- [Ar2200-S Firmware](https://www.precursorintelligence.com/product/huawei/ar2200-s_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r008c20
- [Ar3600 Firmware](https://www.precursorintelligence.com/product/huawei/ar3600_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r006c10, v200r007c00, v200r007c01, v200r008c20
- [Ar510 Firmware](https://www.precursorintelligence.com/product/huawei/ar510_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r008c20
- [Srg3300 Firmware](https://www.precursorintelligence.com/product/huawei/srg3300_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r005c32, v200r006c10, v200r007c00, v200r008c20
- [Smc2.0 Firmware](https://www.precursorintelligence.com/product/huawei/smc2.0_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r003c10, v100r005c00, v500r002c00
- [Vp9660 Firmware](https://www.precursorintelligence.com/product/huawei/vp9660_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r001c02, v200r001c30, v500r002c00
- [Espace U1981 Firmware](https://www.precursorintelligence.com/product/huawei/espace_u1981_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r003c20, v200r003c30
- [Espace Usm Firmware](https://www.precursorintelligence.com/product/huawei/espace_usm_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r001c01, v300r001c00
- [Te60 Firmware](https://www.precursorintelligence.com/product/huawei/te60_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r003c00, v500r002c00
- [Viewpoint 8660 Firmware](https://www.precursorintelligence.com/product/huawei/viewpoint_8660_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r008c02, v100r008c03
- [Ar1200](https://www.precursorintelligence.com/product/huawei/ar1200) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar1200-S](https://www.precursorintelligence.com/product/huawei/ar1200-s) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar150](https://www.precursorintelligence.com/product/huawei/ar150) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar160](https://www.precursorintelligence.com/product/huawei/ar160) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar200](https://www.precursorintelligence.com/product/huawei/ar200) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar200-S](https://www.precursorintelligence.com/product/huawei/ar200-s) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar2200](https://www.precursorintelligence.com/product/huawei/ar2200) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar2200-S](https://www.precursorintelligence.com/product/huawei/ar2200-s) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar3200](https://www.precursorintelligence.com/product/huawei/ar3200) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar3600](https://www.precursorintelligence.com/product/huawei/ar3600) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Ar510](https://www.precursorintelligence.com/product/huawei/ar510) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Cloudengine 12800](https://www.precursorintelligence.com/product/huawei/cloudengine_12800) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Cloudengine 5800](https://www.precursorintelligence.com/product/huawei/cloudengine_5800) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Cloudengine 6800](https://www.precursorintelligence.com/product/huawei/cloudengine_6800) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Cloudengine 7800](https://www.precursorintelligence.com/product/huawei/cloudengine_7800) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Dp300](https://www.precursorintelligence.com/product/huawei/dp300) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Dp300 Firmware](https://www.precursorintelligence.com/product/huawei/dp300_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v500r002c00
- [Espace Iad](https://www.precursorintelligence.com/product/huawei/espace_iad) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Espace Iad Firmware](https://www.precursorintelligence.com/product/huawei/espace_iad_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v300r002c01
- [Espace U1981](https://www.precursorintelligence.com/product/huawei/espace_u1981) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Espace Usm](https://www.precursorintelligence.com/product/huawei/espace_usm) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Smc2.0](https://www.precursorintelligence.com/product/huawei/smc2.0) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Srg1300](https://www.precursorintelligence.com/product/huawei/srg1300) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Srg2300](https://www.precursorintelligence.com/product/huawei/srg2300) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Srg3300](https://www.precursorintelligence.com/product/huawei/srg3300) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Te30](https://www.precursorintelligence.com/product/huawei/te30) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Te30 Firmware](https://www.precursorintelligence.com/product/huawei/te30_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v100r001c10
- [Te60](https://www.precursorintelligence.com/product/huawei/te60) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Viewpoint 8660](https://www.precursorintelligence.com/product/huawei/viewpoint_8660) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified
- [Vp9660](https://www.precursorintelligence.com/product/huawei/vp9660) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified

## How do I fix CVE-2017-17301?

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](http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171222-01-cryptography-en) (Vendor advisory)

## Questions

### What is CVE-2017-17301?

CVE-2017-17301 is a critical-severity flaw in Ar120-S from Huawei, published on 15 February 2018. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.

### How serious is CVE-2017-17301?

It scores 9.8 out of 10 on the CVSS severity scale, which is critical. Our risk score for CVE-2017-17301 is 54 out of 100, which is Medium. Its action is "Plan remediation". Not confirmed as exploited yet, but serious or likely enough that it should not wait for a quiet month.

### Is CVE-2017-17301 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 1.0%. That can change at any time, which is why we keep watching.

### Which versions does CVE-2017-17301 affect?

For Ar120-S from Huawei: version not specified. The record lists 56 products in all, each with its versions, under "Who is affected" on this page.

### How do I fix CVE-2017-17301?

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-2017-17301 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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