PT-2023-31423 · Dalmann · Ocpp.Core

Gaetano Coppoletta · Published 2023-12-07 · Updated 2023-12-13 · CVE-2023-49957

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Dalmann OCPP.Core versions prior to 1.3.0

Description An issue was discovered in Dalmann OCPP.Core 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.

Recommendations For versions prior to 1.3.0, update to version 1.3.0 or later to resolve the issue. As a temporary workaround, consider restricting the use of the same connectorId and idTag for multiple transactions to minimize the risk of exploitation.

Exploit

Fix

Related Identifiers

CVE-2023-49957

Affected Products

Ocpp.Core

References · 7

• 🔥 https://github.com/dallmann-consulting/OCPP.Core/issues/35 · Exploit
• https://osv.dev/vulnerability/CVE-2023-49957 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-49957 · Security Note
• https://twitter.com/CVEnew/status/1732751705488380158 · Twitter Post
• https://t.me/cvenotify/63472 · Telegram Post
• https://t.me/cvenotify/62697 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1732785088545390910 · Twitter Post