No access to your tenant or devices. Every item links to its source. What this means
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.
Read the publisher's advisoryVendor product
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Mailu",
"product": "Mailu",
"versions": [
{
"version": ">= 2.0.0, < 2024.06.55",
"status": "affected"
}
]
}Vendor product
Shown as published. These rules are not interpreted as NuGet package version ranges.
{
"vendor": "Mailu",
"product": "helm-charts",
"versions": [
{
"version": "< 2.7.3",
"status": "affected"
}
]
}Original source record · Cite this exact observation · Complete original publisher JSON