Incident Overview
Jumpn Finance was rugpulled and 4158 $BNB was stolen using a privileged function.
Jumpn Finance's $JST and $JAC staking pools were rugpulled. The scammer used 0x6b1d9018() privileged function on two pools and drained assets for a total 4138 $BNB. Consequently, 4100 $BNB was transferred through TornadoCash, the remaining 58 $BNB stays at the scammer's address.
Scammer address:
https://bscscan.com/address/0xd3de02b1…816982
Malicious transactions:
https://bscscan.com/tx/0x43e77e6e…65d218
https://bscscan.com/tx/0x48333962…96b72c
Withdraw transactions:
https://bscscan.com/txs?toaddress=0x0D5550d5…859b17&address=0xd3de02b1…816982
Incident Report
Protocol Information
Market Context at Time of Hack
What the Attacker Needed to Succeed
Understanding the prerequisites for this type of attack helps auditors identify protocols that are most at risk and helps developers build better defenses.
What Auditors Should Check
If you're auditing a protocol with similar architecture to Jumpn Finance, these are the critical security checks that could have prevented this incident (October 2022).
- Verify all logic paths related to Rugpull are guarded by proper access controls and input validation
- Review privileged functions (owner, admin, governance) for potential abuse vectors - centralization risks should be documented and bounded with timelocks or multi-sigs
Master these auditing techniques with hands-on labs and real exploit scenarios in the Smart Contract Hacking course.
Free TrialSecurity Audit History
- Audit Report 1 Report
Sources & References
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