6.1
MEDIUM
CVE-2019-3877
Apache mod_auth_mellon Open Redirect Vulnerability
Description

A vulnerability was found in mod_auth_mellon before v0.14.2. An open redirect in the logout URL allows requests with backslashes to pass through by assuming that it is a relative URL, while the browsers silently convert backslash characters into forward slashes treating them as an absolute URL. This mismatch allows an attacker to bypass the redirect URL validation logic in apr_uri_parse function.

INFO

Published Date :

March 27, 2019, 1:29 p.m.

Last Modified :

Nov. 21, 2024, 4:42 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2019-3877 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Canonical ubuntu_linux
1 Redhat enterprise_linux
1 Fedoraproject fedora
1 Mod_auth_mellon_project mod_auth_mellon
1 Uninett mod_auth_mellon
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-3877.

URL Resource
https://access.redhat.com/errata/RHSA-2019:0766
https://access.redhat.com/errata/RHSA-2019:3421
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3877 Issue Tracking Patch Third Party Advisory
https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8 Patch Third Party Advisory
https://github.com/Uninett/mod_auth_mellon/issues/35 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/
https://usn.ubuntu.com/3924-1/ Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0766
https://access.redhat.com/errata/RHSA-2019:3421
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3877 Issue Tracking Patch Third Party Advisory
https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8 Patch Third Party Advisory
https://github.com/Uninett/mod_auth_mellon/issues/35 Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/
https://usn.ubuntu.com/3924-1/ Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-3877 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-3877 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:0766
    Added Reference https://access.redhat.com/errata/RHSA-2019:3421
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3877
    Added Reference https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8
    Added Reference https://github.com/Uninett/mod_auth_mellon/issues/35
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/
    Added Reference https://usn.ubuntu.com/3924-1/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/ [No types assigned]
    Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/ [No types assigned]
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/
    Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/
  • CVE Modified by [email protected]

    Nov. 06, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:3421 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
    Added CWE Red Hat, Inc. CWE-601
  • CVE Modified by [email protected]

    Apr. 16, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:0766 [No Types Assigned]
  • CVE Modified by [email protected]

    Apr. 10, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 03, 2019

    Action Type Old Value New Value
    Changed Reference Type https://usn.ubuntu.com/3924-1/ No Types Assigned https://usn.ubuntu.com/3924-1/ Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/ Mailing List, Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:-:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Apr. 02, 2019

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 28, 2019

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/3924-1/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 28, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3877 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3877 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/Uninett/mod_auth_mellon/issues/35 No Types Assigned https://github.com/Uninett/mod_auth_mellon/issues/35 Patch, Third Party Advisory
    Changed Reference Type https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8 No Types Assigned https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8 Patch, Third Party Advisory
    Added CWE CWE-601
    Added CPE Configuration OR *cpe:2.3:a:mod_auth_mellon_project:mod_auth_mellon:*:*:*:*:*:apache:*:* versions up to (excluding) 0.14.2
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-3877 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-3877 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.26 }} -0.01%

score

0.64629

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability