PT-2023-31422 · Dalmann · Ocpp.Core

Gaetano Coppoletta · Published 2023-12-07 · Updated 2023-12-13 · CVE-2023-49956

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:N/A:H

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. A StopTransaction message with any random transactionId terminates active transactions.

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 handling of StopTransaction messages with random transactionId values to prevent unauthorized termination of active transactions.

Exploit

Fix

Related Identifiers

CVE-2023-49956

Affected Products

Ocpp.Core

References · 8

• 🔥 https://github.com/dallmann-consulting/OCPP.Core/issues/34 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-49956 · Security Note
• https://osv.dev/vulnerability/CVE-2023-49956 · Vendor Advisory
• https://t.me/cvenotify/63471 · Telegram Post
• https://t.me/cvenotify/62740 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1732785341512159386 · Twitter Post
• https://t.me/cvenotify/62696 · Telegram Post
• https://twitter.com/CVEnew/status/1732745478796632392 · Twitter Post