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Security Advisory - DoS Vulnerability in Some Huawei Products

  • SA No:huawei-sa-20171206-01-vpp
  • Initial Release Date: Dec 06, 2017
  • Last Release Date: Dec 06, 2017

There is an DoS vulnerability in some Huawei products due to insufficient validation of the parameter when a putty comment key is loaded. An authenticated remote attacker can place a malformed putty key file in system, when a system manager load the key, an infinite loop happens which lead to reboot the system. (Vulnerability ID: HWPSIRT-2017-06039)

This vulnerability has been assigned a CVE ID: CVE-2017-17131.
Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20171206-01-vpp-en

Product Name

Affected Version

Resolved Product and Version

DP300

V500R002C00

V500R002C00SPCb00

RP200

V500R002C00

Upgrade to V600R006C00SPC400

V600R006C00

V600R006C00SPC400

TE30

V100R001C10

Upgrade to V600R006C00SPC400

V600R006C00

V600R006C00SPC400

TE50

V600R006C00

V600R006C00SPC400

TE60

V100R001C10

Upgrade to V600R006C00SPC400

V500R002C00

V600R006C00

V600R006C00SPC400

VP9660

V500R002C10

V500R002C10SPC800

Successful exploit of this vulnerability can allow an attacker to launch DOS attack.
The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
Base Score: 5.7 (AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H)
Temporal Score: 5.3 (E:F/RL:O/RC:C)
This vulnerability can be exploited only when the following conditions are present:
The attacker can access the vulnerable system and place a malformed putty key file in system.
Vulnerability details:
An authenticated remote attacker can place a malformed putty key file in system, when a system manager load the key, an infinite loop happens which lead to reboot the system.

Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at http://www.huawei.com/en/psirt/report-vulnerabilities.

This vulnerability was discovered by Huawei internal tester.
2017-12-06 V1.0 INITIAL

Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.

To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.

To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.

This document is provided on an "AS IS" basis and does not imply any kind of guarantee or warranty, either express or implied, including the warranties of merchantability or fitness for a particular purpose. In no event shall Huawei or any of its directly or indirectly controlled subsidiaries or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages. Your use of the document, by whatsoever means, will be totally at your own risk. Huawei is entitled to amend or update this document from time to time.