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Summary: A validator client uses two API keys: ".secp-sk" (secret key) and "api-token.txt" (the corresponding public key).
Both files are stored in a user directory with 644 permission bits.
So any user on the host can read them.
UID: CL-2021-39
Severity: medium
Type: BUG
Affected Clients: Lighthouse
Summary: A validator client uses two API keys: ".secp-sk" (secret key) and "api-token.txt" (the corresponding public key).
Both files are stored in a user directory with 644 permission bits.
So any user on the host can read them.
Links: sigp/lighthouse#2437
Reported: 2021-07-07
Fixed: 2021-09-13
Published: 2021-12-01
Bounty Hunter: Taurus
Bounty Points: Part of EF initiated Security Audit: https://arxiv.org/abs/2109.11685
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