Ubiquiti EdgeRouter/UniFi Security Gateway up to 2.0.9-hotf/4.4.56 DHCPv6 Prefix Delegation unknown vulnerability

EntryHistoryDiffjsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4	$0-$5k	0.00

A vulnerability was found in Ubiquiti EdgeRouter and UniFi Security Gateway up to 2.0.9-hotf/4.4.56 (Router Operating System). It has been rated as critical. This issue affects some unknown processing of the component DHCPv6 Prefix Delegation Handler. The manipulation with an unknown input leads to a failure to sanitize special elements into a different plane (special element injection) vulnerability. Using CWE to declare the problem leads to CWE-75. The product does not adequately filter user-controlled input for special elements with control implications. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability, found in EdgeRouters Version 2.0.9-hotfix.5 and earlier and UniFi Security Gateways (USG) Version 4.4.56 and earlier with their DHCPv6 prefix delegation set to dhcpv6-stateless or dhcpv6-stateful, allows a malicious actor directly connected to the WAN interface of an affected device to create a remote code execution vulnerability.

The weakness was shared 02/09/2023. It is possible to read the advisory at community.ui.com. The identification of this vulnerability is CVE-2023-23912 since 01/19/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at community.ui.com.

Productinfo

Type

Router Operating System

Vendor

Ubiquiti

Name

Version

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Failure to sanitize special elements into a different plane (special element injection)
CWE: CWE-75 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: community.ui.com

Timelineinfo

01/19/2023 🔍
02/09/2023 +21 days 🔍
02/09/2023 +0 days 🔍
03/09/2023 +28 days 🔍

Sourcesinfo

Advisory: community.ui.com
Status: Confirmed

CVE: CVE-2023-23912 (🔍)

Entryinfo

Created: 02/09/2023 21:52
Updated: 03/09/2023 09:58
Changes: 02/09/2023 21:52 (40), 03/09/2023 09:58 (11)
Complete: 🔍