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Security Advisory - Privilege Escalation Vulnerability in Some Huawei Servers

  • SA No:huawei-sa-20180530-03-server
  • Initial Release Date: May 30, 2018
  • Last Release Date: Jun 04, 2018

The iBMC (Intelligent Baseboard Management Controller) of some Huawei servers have a privilege escalation vulnerability. A remote attacker may send some specially crafted login messages to the affected products. Due to improper authentication design, successful exploit enables low privileged users to get or modify passwords of highly privileged users. (Vulnerability ID: HWPSIRT-2018-02049)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2018-7949.
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-20180530-03-server-en

Product Name

Affected Version

Resolved Product and Version

1288H V5

V100R005C00

V100R005C00SPC113(iBMC:V300)

2288H V5

V100R005C00

V100R005C00SPC113(iBMC:V300)

2488 V5 

V100R005C00

V100R005C00SPC302(iBMC:V296)

CH121 V3

V100R001C00

V100R001C00SPC260(iBMC:V298)

CH121L V3

V100R001C00

V100R001C00SPC160(iBMC:V298)

CH121L V5 

V100R001C00

V100R001C00SPC121(iBMC:V296)

CH121 V5 

V100R001C00

V100R001C00SPC123(iBMC:V296)

CH140 V3

V100R001C00

V100R001C00SPC180(iBMC:V298)

CH140L V3

V100R001C00

V100R001C00SPC160(iBMC:V298)

CH220 V3

V100R001C00

V100R001C00SPC260(iBMC:V298)

CH222 V3

V100R001C00

V100R001C00SPC260(iBMC:V298)

CH242 V3

V100R001C00

V100R001C00SPC330(iBMC:V298)

CH242 V5 

V100R001C00

V100R001C00SPC112(iBMC:V296)

RH1288 V3

V100R003C00

V100R003C00SPC701(iBMC:V294)

RH2288 V3

V100R003C00

V100R003C00SPC701(iBMC:V294)

RH2288H V3

V100R003C00

V100R003C00SPC701(iBMC:V294)

XH310 V3

V100R003C00

V100R003C00SPC701(iBMC:V296)

XH321 V3

V100R003C00

V100R003C00SPC701(iBMC:V296)

XH321 V5

V100R005C00

V100R005C00SPC400(iBMC:V296)

XH620 V3

V100R003C00

V100R003C00SPC701(iBMC:V296)


Successful exploit enables low privileged users to get or modify passwords of highly privileged users.
The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
Base Score: 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Temporal Score: 8.2 (E:F/RL:O/RC:C)
This vulnerability can be exploited only when the following conditions are present:
The attacker obtains the password and could log in to the target device.
Vulnerability details:
A remote attacker may send some specially crafted login messages to the affected products. Due to improper authentication design, successful exploit enables low privileged users to get or modify passwords of highly privileged users.

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.

2018-06-04 V1.1 UPDATED Updated the affected version and fix version information
2018-05-30 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.

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