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Security Advisory - Information Leak Vulnerability in Certain Huawei Products

  • SA No:Huawei-SA-20150930-01-Routers
  • Initial Release Date: 2015-09-30
  • Last Release Date: 2017-04-19

Some Huawei products have two information leak vulnerabilities caused by improper encryption mechanisms.

Users can use reversible or irreversible encryption algorithms to encrypt passwords. If a reversible encryption algorithm is used to encrypt administrators' passwords, an attacker with high administrative privileges can log in to the device, obtain the ciphertext password of a higher-level administrator, and crack it to get elevated privileges. (Vulnerability ID: HWPSIRT-2015-06073)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-8085.

Encryption keys are stored in the system. The attacker can implement reverse engineering to obtain the encryption keys. (Vulnerability ID: HWPSIRT-2015-06080)

This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-8086.

After successful exploitation of the two vulnerabilities, the attacker can obtain plaintext passwords, leading to user information leaks.

Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:

http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-455876.htm

Product Name

Affected Version

Resolved Product and Version

AR

V200R001

Upgrade to V200R007C00SPC100

V200R002

V200R003

V200R005C10

V200R005C20

V200R005C30

Quidway S9300

V200R003C00SPC500

Upgrade to V200R009C00

V200R002C00SPC100

V200R001C00SPC300

S12700

V200R006C00

Upgrade to V200R008C00SPC500

V200R005C00

S9300

V200R006C00SPC500

Upgrade to V200R007C00

V200R005C00SPC300

Quidway S5300

V200R001C00SPC300

Upgrade to V200R007C00

S5700

V200R006C00

Upgrade to V200R007C00SPC500

V200R005C00

V200R003C00

V200R002C00

V200R001C00

S5300

V200R006C00SPC500

Upgrade to V200R007C00

V200R005C00SPC500

V200R002C00



HWPSIRT-2015-06073&HWPSIRT-2015-06080:

After successful exploitation of the two vulnerabilities, the attacker can obtain plaintext passwords, leading to user information leaks.

The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/).

HWPSIRT-2015-06073

Base Score: 2.1 (AV:N/AC:H/Au:S/C:P/I:N/A:N)

Temporal Score: 1.7 (E:F/RL:O/RC:C)

HWPSIRT-2015-06080

Base Score: 2.1 (AV:N/AC:H/Au:S/C:P/I:N/A:N)

Temporal Score: 1.7 (E:F/RL:O/RC:C)

HWPSIRT-2015-06073&HWPSIRT-2015-06080:

1. Prerequisite:

The attacker has access to the network and obtains high administrative privileges;

2. Attacking procedure:

Users can use reversible or irreversible encryption algorithms to encrypt passwords. If a reversible encryption algorithm is used to encrypt administrators' passwords, an attacker with high administrative privileges can log in to the device, obtain the ciphertext password of a higher-level administrator, and crack it to get elevated privileges. (Vulnerability ID: HWPSIRT-2015-06073)

Encryption keys are stored in the system. The attacker can implement reverse engineering to obtain the encryption keys. (Vulnerability ID: HWPSIRT-2015-06080)

After successful exploitation of the two vulnerabilities, the attacker can obtain plaintext passwords, leading to user information leaks.

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/security/psirt/report-vulnerabilities/index.htm.


This vulnerability is reported by two Emaze researchers, Roberto Paleari and Aristide Fattori. Thanks for their attention on the vulnerabilities in Huawei products. Huawei PSIRT is not aware of any malicious use of the vulnerability described in this advisory. 

For security problems about Huawei products and solutions, please contactPSIRT@huawei.com.

For general problems about Huawei products and solutions, please directly contact Huawei TAC (Huawei Technical Assistance Center) to request the configuration or technical assistance.


2017-04-19 V1.4 UPDATED Updated Summary and Technique Details

2016-09-07 V1.3 UPDATED Updated the "Software Versions and Fixes" section.

2015-11-11 V1.2 UPDATED Updated CVE IDs and Summary

2015-11-03 V1.1 UPDATED Updated the CVSS score

2015-09-30 V1.0 INITIAL

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.


Complete information for providing feedback on security vulnerability of Huawei products, getting support for Huawei security incident response services, and obtaining Huawei security vulnerability information, is available on Huawei's worldwide website at http://www.huawei.com/en/security/psirt/.