Security Advisory - Buffer Overflow Vulnerability in Huawei USG Products
- SA No:huawei-sa-20160914-01-usg
- Initial Release Date: Sep 14, 2016
- Last Release Date: Sep 19, 2016
The Point-to-Point Protocol over Ethernet (PPPoE) module of the USG has a buffer overflow vulnerability. When Challenge Handshake Authentication Protocol (CHAP) authentication is configured on the server, an attacker may send abnormal attack packets to the server during authentication to cause buffer overflow. Successful exploit could allow the attacker to execute arbitrary code and cause the server to restart. (Vulnerability ID: HWPSIRT-2016-06053).
This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2016-8276.
Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160914-01-usg-en|
Product Name |
Affected Version |
Resolved Product and Version |
|
USG2100 |
V300R001C00 |
Upgrade to V300R001C10SPC600 |
|
V300R001C10 |
V300R001C10SPC600 |
|
|
USG2200 |
V300R001C00 |
Upgrade to V300R001C10SPC600 |
|
V300R001C10 |
V300R001C10SPC600 |
|
|
USG5100 |
V300R001C00 |
Upgrade to V300R001C10SPC600 |
|
V300R001C10 |
V300R001C10SPC600 |
|
|
USG5500 |
V300R001C00 |
Upgrade to V300R001C10SPC600 |
|
V300R001C10 |
V300R001C10SPC600 |
An attacker can exploit the vulnerability to send abnormal attack packets to the server during authentication to cause buffer overflow. Successful exploit could allow the attacker to execute arbitrary code and cause the server to restart.
The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/).
Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)
Temporal Score: 7.7 (E:F/RL:O/RC:C)
1. Prerequisite:
CHAP authentication was configured on the server.
2. Attacking procedure:
When Challenge Handshake Authentication Protocol (CHAP) authentication is configured on the server, an attacker may send abnormal attack packets to the server during authentication to cause buffer overflow. Successful exploit could allow the attacker to execute arbitrary code and cause the server to restart.
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.
2016-09-19 V1.1 UPDATE Add the CVE ID
2016-09-14 V1.0 INITIAL
None
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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.
