mcp-server-semgrep/semgrep-rules/solidity/security/keeper-network-oracle-manipulation.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
 -
    id: keeper-network-oracle-manipulation
    message: >-
      Keep3rV2.current() call has high data freshness, but it has low security, 
      an exploiter simply needs to manipulate 2 data points to be able to impact the feed.
    metadata:
        category: security
        technology:
          - solidity
        cwe: "CWE-682: Incorrect Calculation"
        confidence: HIGH
        likelihood: LOW
        impact: HIGH
        subcategory:
            - vuln
        references:
        - https://twitter.com/peckshield/status/1510232640338608131
        - https://twitter.com/FrankResearcher/status/1510239094777032713
        - https://twitter.com/larry0x/status/1510263618180464644
        - https://andrecronje.medium.com/keep3r-network-on-chain-oracle-price-feeds-3c67ed002a9
        - https://etherscan.io/address/0x210ac53b27f16e20a9aa7d16260f84693390258f
    patterns:
    - pattern: $KEEPER.current($TOKENIN, $AMOUNTIN, $TOKENOUT);
    languages: 
    - solidity
    severity: WARNING