VDB-229621 · CVE-2023-33281 · GCVE-0-2023-33281

Nissan Sylphy Classic 2021 Remote keyfob System authentication replay

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.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Nissan Sylphy Classic 2021. It has been rated as very critical. The impacted element is an unknown function of the component Remote keyfob System. This manipulation causes authentication replay. This vulnerability is handled as CVE-2023-33281. It is feasible to perform the attack on the physical device. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Nissan Sylphy Classic 2021 and classified as critical. Affected by this vulnerability is an unknown function of the component Remote keyfob System. The manipulation with an unknown input leads to a authentication replay vulnerability. The CWE definition for the vulnerability is CWE-294. A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The remote keyfob system on Nissan Sylphy Classic 2021 sends the same RF signal for each door-open request, which allows for a replay attack.

The weakness was released 05/22/2023. The advisory is shared at chaos-lab.blogspot.com. This vulnerability is known as CVE-2023-33281 since 05/22/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/15/2023). MITRE ATT&CK project uses the attack technique T1040 for this issue.

We expect the 0-day to have been worth approximately $5k-$25k.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Nissan

Name

Sylphy Classic

Version

2021

CPE 2.3info

🔍

CPE 2.2info

🔍

Video

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.2

VulDB Base Score: 3.9
VulDB Temp Score: 3.9
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
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication replay
CWE: CWE-294 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: Partially

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

05/22/2023 🔍
05/22/2023 +0 days 🔍
05/22/2023 +0 days 🔍
06/15/2023 +24 days 🔍

Sourcesinfo

Advisory: chaos-lab.blogspot.com
Status: Not defined

CVE: CVE-2023-33281 (🔍)
GCVE (CVE): GCVE-0-2023-33281
GCVE (VulDB): GCVE-100-229621

Entryinfo

Created: 05/22/2023 07:05
Updated: 06/15/2023 14:34
Changes: 05/22/2023 07:05 (39), 06/15/2023 14:34 (11)
Complete: 🔍
Cache ID: 216::103