The CF cards on some Huawei switches and ARs contain some sensitive information in plaintext. Once an attacker gets such a CF card, it may result in the leak of sensitive information (HWPSIRT-2015-07048).
This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID: CVE-2015-7846.
Huawei has released software updates to fix these vulnerabilities. This advisory is available at the following link:
### Software Versions and Fixes
|Product Name|Affected Version|Resolved Product and Version|
|S7700/S9700/S9300 |V200R001C00SPC300 V200R002C00SPC100 V200R003C00SPC500 V200R005C00SPC300 V200R006C00SPC300 V200R006C00SPC500| Upgrade to V200R07C00SPC500|
|AR200/ AR1200/AR2200/AR3200| V200R003C00SPC100 V200R003C00SPC200 V200R003C01SPC100 V200R003C01SPC200 V200R003C01SPC300 V200R003C01SPC500 V200R003C01SPC600 V200R003C01SPC800 V200R003C01SPC900| Upgrade to V200R005C20SPC200|
Once the attacker gets such a CF card, it may result in the leak of sensitive information.
### Vulnerability Scoring Details
The vulnerability classification has been performed by using the CVSSv2 scoring system (http://www.first.org/cvss/).
Base Score：2.1 (AV:L/AC:L/Au:N/C:P/I:N/A:N)
Temporal Score: 1.7 (E:F/RL:O/RC:C)
### Technique Details
The attacker must have physical access to the equipment.
2. Attacking procedure:
**The attacker gets physical access to the equipment, takes away the CF card, and exports the files from it.**
### Temporary Fix
### Obtaining Fixed Software
Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades, or obtain them through Huawei worldwide website at http://support.huawei.com/support/.
For TAC contact information, please refer to Huawei worldwide website at: http://www.huawei.com/en/security/psirt/report-vulnerabilities/index.htm.
### Exploitation and Vulnerability Source
This vulnerability was reported privately to Huawei by Mickey Shkatov from Intel Advanced Threat Research Team and Jesse Michael from Intel. Huawei expresses our appreciation for Mickey Shkatov’s and Jesse Michael’s coordinated vulnerability disclosure with Huawei.
Huawei PSIRT is not aware of any malicious use of the vulnerabilities described in this advisory.
### Contact Channel for Technique Issue
For security problems about Huawei products and solutions, please contact PSIRT@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.
### Revision History
2015-10-28 V1.2 UPDATED Updated Summary by adding CVE ID to this vulnerability and the released security advisory link
2015-08-19 V1.1 UPDATED Updated the Software Versions and Fixes.
2015-08-05 V1.0 INITIAL
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### Huawei Security Procedures
Complete information on 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/.