Dalmann OCPP.Core up to 1.2.x Transaction Management idTag access control ⚔ [Disputed]

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.
5.4$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Dalmann OCPP.Core up to 1.2.x. Impacted is an unknown function of the component Transaction Management. The manipulation of the argument idTag results in access control. This vulnerability is cataloged as CVE-2023-49957. There is no exploit available. The actual existence of this vulnerability is currently in question. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Dalmann OCPP.Core up to 1.2.x. It has been classified as problematic. Affected is an unknown functionality of the component Transaction Management. The manipulation of the argument idTag with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on integrity. CVE summarizes:

An issue was discovered in Dalmann OCPP.Core before 1.3.0 for OCPP (Open Charge Point Protocol) for electric vehicles. It permits multiple transactions with the same connectorId and idTag, contrary to the expected ConcurrentTx status. This could result in critical transaction management and billing errors. NOTE: the vendor's perspective is "Imagine you've got two cars in your family and want to charge both in parallel on the same account/token? Why should that be rejected?"

The weakness was shared 12/07/2023 as 35. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2023-49957 since 12/03/2023. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The real existence of this vulnerability is still doubted at the moment.

Upgrading to version 1.3.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OCPP.Core 1.3.0

Timelineinfo

12/03/2023 🔍
12/07/2023 +4 days 🔍
12/07/2023 +0 days 🔍
12/30/2023 +23 days 🔍

Sourcesinfo

Advisory: 35
Status: Confirmed
Disputed: 🔍

CVE: CVE-2023-49957 (🔍)
GCVE (CVE): GCVE-0-2023-49957
GCVE (VulDB): GCVE-100-247164

Entryinfo

Created: 12/07/2023 17:17
Updated: 12/30/2023 17:23
Changes: 12/07/2023 17:17 (43), 12/30/2023 17:23 (11)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!