CVE-2019-3878 (GCVE-0-2019-3878)

Vulnerability from cvelistv5 – Published: 2019-03-26 17:44 – Updated: 2024-08-04 19:19
VLAI
Summary
A vulnerability was found in mod_auth_mellon before v0.14.2. If Apache is configured as a reverse proxy and mod_auth_mellon is configured to only let through authenticated users (with the require valid-user directive), adding special HTTP headers that are normally used to start the special SAML ECP (non-browser based) can be used to bypass authentication.
Severity
8.1 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
Assigner
References
URL Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… x_refsource_CONFIRM
https://github.com/Uninett/mod_auth_mellon/pull/196 x_refsource_CONFIRM
https://usn.ubuntu.com/3924-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://access.redhat.com/errata/RHSA-2019:0746 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:0766 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:0985 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHBA-2019:0959 vendor-advisoryx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
uninett mod_auth_mellon Affected: before v0.14.2
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.