CVE-2019-3878 vulnerability in Modauthmellonproject and Other Products
Published on March 26, 2019
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.
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NVD
Weakness Type
Authentication Bypass by Primary Weakness
The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.
Products Associated with CVE-2019-3878
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Affected Versions
uninett mod_auth_mellon Version before v0.14.2 is affected by CVE-2019-3878Exploit Probability
EPSS
2.33%
Percentile
84.59%
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.