Security Advisory - CallStranger Vulnerability in UPnP Protocol
- SA No:huawei-sa-20200701-01-upnp
- Initial Release Date: Jul 01, 2020
- Last Release Date: Sep 02, 2020
There is an vulnerability in UPnP protocol that does not forbid the acceptance of a subscription request with a delivery URL on a different network segment than the fully qualified event-subscription URL, named CallStranger. The UPnP function of Huawei product is enabled only on the LAN side and is not enabled on the WAN side. (Vulnerability ID: HWPSIRT-2020-04132)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-12695.
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-20200701-01-upnp-en
|
Product Name |
Affected Version |
Resolved Product and Version |
|
E6878-370 |
Earlier versions than 10.0.5.1(H612SP5C233) |
10.0.5.1(H612SP5C233) |
|
H112-372 |
10.0.1.1(H321SP9C00) |
10.0.5.1(H351SP7C00) |
By exploiting this vulnerability, an attacker may cause information disclosure and affect the availability.
The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
Base Score: 7.5 (AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H)
Temporal Score: 7.0 (E:F/RL:O/RC:C)
This vulnerability can be exploited only when the following conditions are present:
The attacker gains access to the network.
Vulnerability details:
There is an vulnerability in UPnP protocol that does not forbid the acceptance of a subscription request with a delivery URL on a different network segment than the fully qualified event-subscription URL, named CallStranger. The UPnP function of Huawei product is enabled only on the LAN side and is not enabled on the WAN side.
The product that supports automatic update will receive a system update prompt. You can install the update to fix the vulnerability.
This vulnerability was reported by external researcher.
2020-09-02 V1.1 UPDATED Updated the "Software Versions and Fixes" section;
2020-07-01 V1.0 INITIAL
None
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