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Advisories

Prometheus through 3.15.1 Credential Leak via remote_write Cross-Host Redirects

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Severity
medium
Date
Affecting

  • prometheus <= 3.15.1

CWE
  • CWE-522 Insufficiently Protected Credentials
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Abraxas Labs
Description
Prometheus through 3.15.1 contains a credential leak vulnerability that allows attackers to capture Azure AD or Google IAM bearer tokens by redirecting remote_write requests to another host. Attackers controlling the remote-write endpoint or a redirecting server can return a 3xx to their host and replay the token, for example to write metrics to the victim's backend.

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