CVE-2024-45244

MEDIUM

Hyperledger Fabric <3.0.0, <2.5.10 - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2024-45244. PoCs published by shanker-sec.

AI-analyzed exploit summary This repository provides a functional Hyperledger Fabric chaincode that mitigates CVE-2024-45244 by implementing NTP/NTS-based time verification to prevent transaction time manipulation. It includes Go-based chaincode for Fabric 2.4.x and 2.5.x with test cases.

Description

Hyperledger Fabric through 3.0.0 and 2.5.x through 2.5.9 do not verify that a request has a timestamp within the expected time window.

Exploits (2)

nomisec WORKING POC 2 stars
by shanker-sec · poc
https://github.com/shanker-sec/hlf-time-oracle

This repository provides a functional Hyperledger Fabric chaincode that mitigates CVE-2024-45244 by implementing NTP/NTS-based time verification to prevent transaction time manipulation. It includes Go-based chaincode for Fabric 2.4.x and 2.5.x with test cases.

Classification
Working Poc 95%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: Hyperledger Fabric 2.4.x, 2.5.x
No auth needed
Prerequisites: Hyperledger Fabric network · NTP/NTS server access
devstral-2 · analyzed Feb 19, 2026 Full analysis →
nomisec WORKING POC 1 stars
by shanker-sec · poc
https://github.com/shanker-sec/HLF_TxTime_spoofing

This repository contains a functional PoC demonstrating transaction time spoofing in Hyperledger Fabric (CVE-2024-45244). It includes vulnerable chaincode using GetTxTimestamp() and secure variants using NTP/NTS/local time for validation.

Classification
Working Poc 95%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: Hyperledger Fabric v2.5.5 and v3.0.0-beta
No auth needed
Prerequisites: Access to Hyperledger Fabric network · Ability to manipulate local system time
devstral-2 · analyzed Feb 19, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 5.3
EPSS 0.0059
EPSS Percentile 43.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-294
Status published
Products (2)
hyperledger/fabric < 2.5.9
hyperledger/fabric 0Go
Published Aug 25, 2024
Tracked Since Feb 18, 2026