Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-5762

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
29/07/2020
Last modified:
31/07/2020

Description

Grandstream HT800 series firmware version 1.0.17.5 and below is vulnerable to a denial of service attack against the TR-069 service. An unauthenticated remote attacker can stop the service due to a NULL pointer dereference in the TR-069 service. This condition is triggered due to mishandling of the HTTP Authentication field.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:grandstream:ht801_firmware:*:*:*:*:*:*:*:* 1.0.17.5 (including)
cpe:2.3:h:grandstream:ht801:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:ht802_firmware:*:*:*:*:*:*:*:* 1.0.17.5 (including)
cpe:2.3:h:grandstream:ht802:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:ht812_firmware:*:*:*:*:*:*:*:* 1.0.17.5 (including)
cpe:2.3:h:grandstream:ht812:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:ht814_firmware:*:*:*:*:*:*:*:* 1.0.17.5 (including)
cpe:2.3:h:grandstream:ht814:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:ht818_firmware:*:*:*:*:*:*:*:* 1.0.17.5 (including)
cpe:2.3:h:grandstream:ht818:-:*:*:*:*:*:*:*
cpe:2.3:o:grandstream:ht813_firmware:*:*:*:*:*:*:*:* 1.0.17.5 (including)
cpe:2.3:h:grandstream:ht813:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools