Security Advisory - Windows DNS Server Remote Code Execution Vulnerability
- SA No:huawei-sa-20200716-01-dns
- Initial Release Date: Jul 16, 2020
- Last Release Date: Jul 16, 2020
Microsoft's security update in July 2020 addresses the CVE-2020-1350 vulnerability. To exploit the vulnerability, an unauthenticated attacker could send specially crafted requests to a Windows DNS server. An attacker who successfully exploited the vulnerability could run arbitrary code remotely. (Vulnerability ID: HWPSIRT-2020-59863)
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-20200716-01-dns-en
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Product Name |
Affected Version |
Resolved Product and Version |
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Agile Controller-Campus |
V100R002C00 |
Follow the Microsoft security advisory to implement patch or workaround |
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V100R002C00SPC100 |
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V100R002C00SPC101 |
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V100R002C00SPC102 |
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V100R002C00SPC103 |
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V100R002C00SPC105 |
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V100R002C00SPC106 |
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V100R002C00SPC107 |
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V100R002C00SPC200 |
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V100R002C10 |
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V100R002C10SPC100 |
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V100R002C10SPC101 |
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V100R002C10SPC200 |
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V100R002C10SPC300 |
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V100R002C10SPC400 |
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V100R002C10SPC401 |
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V100R002C10SPC402 |
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V100R002C10SPC403 |
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V100R002C10SPC404 |
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V100R002C10SPC405 |
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V100R002C10SPC406 |
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V100R002C10SPC407 |
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V100R002C10SPC408 |
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V100R002C10SPC409 |
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V100R002C10SPC410 |
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V100R002C10SPC411 |
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V100R003C30 |
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V100R003C30SPC100 |
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V100R003C30SPC101 |
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V100R003C30SPC102 |
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V100R003C30SPC103 |
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V100R003C30SPC105 |
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V100R003C30SPC106 |
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V100R003C50 |
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V100R003C50SPC100 |
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V100R003C50SPC200 |
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V100R003C50SPC300 |
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V100R003C50SPC301 |
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V100R003C50SPC302 |
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V100R003C50SPC303 |
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V100R003C50SPC305 |
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V100R003C50SPC306 |
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V100R003C60 |
||
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V100R003C60SPC100 |
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V100R003C60SPC200 |
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V100R003C60SPC201 |
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V100R003C60SPC202 |
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V100R003C60SPC203 |
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V100R003C60SPC205 |
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V100R003C60SPC206 |
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V100R003C60SPC207 |
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V100R003C60SPC208 |
By exploiting this vulnerability, an attacker could run arbitrary code remotely.
The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
Base Score: 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Temporal Score: 9.3 (E:F/RL:O/RC:C)
This vulnerability can be exploited only when the following conditions are present:
1.The attacker can send request to target device.
2.The DNS server service is enabled and DNS forwarding function is supported.
Vulnerability details:
Microsoft's security update in July 2020 addresses the CVE-2020-1350 vulnerability. To exploit the vulnerability, an unauthenticated attacker could send specially crafted requests to a Windows DNS server. An attacker who successfully exploited the vulnerability could run arbitrary code remotely.
The Microsoft security advisory is available at: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1350
The following registry modification has been identified as a workaround for this vulnerability.
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesDNSParameters
DWORD = TcpReceivePacketSize
Value = 0xFF00
Note: A restart of the DNS Service is required to take effect.
Suggestion: If it is not used as the DNS server, you are advised to disable the DNS service.
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/index.htm
This vulnerability was disclosed by Microsoft.
2020-07-16 V1.0 INITIAL
None
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.
