Aggregator Manipulation Risks
Aggregator manipulation risks arise when the mechanisms used to combine data from multiple sources into a single price feed are exploited or behave unexpectedly. Aggregators often use techniques like calculating the median or a weighted average of various data points to filter out noise and potential manipulation from individual sources.
However, if an attacker can control a sufficient number of the sources feeding into the aggregator, they can influence the final output, even if they do not control all of them. Furthermore, the aggregation logic itself may have flaws that make it susceptible to specific patterns of data input.
Understanding how an oracle aggregates its data is crucial for assessing its resilience to adversarial input. If the aggregation method is not sufficiently robust or transparent, it can provide a false sense of security while remaining vulnerable to sophisticated coordinated attacks.