VDB-237615 · CVE-2023-38909 · GCVE-0-2023-38909

TP-Link Smart Bulb Tapo L530/Tapo Application AES128-CBC predictable iv with cbc

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.
4.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in TP-Link Smart Bulb Tapo L530 and Tapo Application. It has been rated as problematic. This issue affects some unknown processing of the component AES128-CBC. Performing a manipulation results in predictable iv with cbc. This vulnerability is known as CVE-2023-38909. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in TP-Link Smart Bulb Tapo L530 and Tapo Application (version unknown). It has been classified as problematic. This affects an unknown function of the component AES128-CBC. The manipulation with an unknown input leads to a predictable iv with cbc vulnerability. CWE is classifying the issue as CWE-329. The product generates and uses a predictable initialization Vector (IV) with Cipher Block Chaining (CBC) Mode, which causes algorithms to be susceptible to dictionary attacks when they are encrypted under the same key. This is going to have an impact on confidentiality. The summary by CVE is:

An issue in TPLink Smart bulb Tapo series L530 v.1.0.0 and Tapo Application v.2.8.14 allows a remote attacker to obtain sensitive information via the IV component in the AES128-CBC function.

The weakness was published 08/22/2023. It is possible to read the advisory at arxiv.org. This vulnerability is uniquely identified as CVE-2023-38909 since 07/25/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

TP-Link

Name

License

commercial

Website

Vendor: https://www.tp-link.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Predictable iv with cbc
CWE: CWE-329 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/25/2023 🔍
08/22/2023 +28 days 🔍
08/22/2023 +0 days 🔍
09/14/2023 +23 days 🔍

Sourcesinfo

Vendor: tp-link.com

Advisory: arxiv.org
Status: Not defined

CVE: CVE-2023-38909 (🔍)
GCVE (CVE): GCVE-0-2023-38909
GCVE (VulDB): GCVE-100-237615

Entryinfo

Created: 08/22/2023 07:44
Updated: 09/14/2023 08:55
Changes: 08/22/2023 07:44 (37), 09/14/2023 08:55 (11)
Complete: 🔍
Cache ID: 216::103