Mailu: Authentication bypass in header-based proxy authentication via spoofable `X-Forwarded-By` trust
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Mailu | Mailu | affected |
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| Mailu | helm-charts | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
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| Mailu | Helm-charts |
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| Mailu | Mailu |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.557% probability within 30 days)
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Mailu
Mailu helm-charts Mailu mailu |
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| Vendors & Products |
Mailu
Mailu helm-charts Mailu mailu |
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| Description | Mailu is a mail server distributed as a set of Docker images. From Mailu 2.0 until 2024.06.55 and prior to Mailu helm-charts 2.7.3, deployments with PROXY_AUTH_WHITELIST configured but REAL_IP_HEADER unset trusted a client-controlled X-Forwarded-By header for header-based proxy authentication. The proxy_hide_header directive in the nginx template at core/nginx/conf/proxy.conf hid the header from upstream responses but did not overwrite the incoming request value in this configuration. An unauthenticated remote attacker could therefore spoof the trusted proxy identity and bypass authentication. This issue is fixed in Mailu 2024.06.55 and Mailu helm-charts 2.7.3. | |
| Title | Mailu: Authentication bypass in header-based proxy authentication via spoofable `X-Forwarded-By` trust | |
| Weaknesses | CWE-290 CWE-807 |
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| References |
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| Metrics |
cvssV3_1
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