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freebsdFreeBSD7BBA5B3B-1B7F-11EC-B335-D4C9EF517024
HistoryJul 30, 2021 - 12:00 a.m.

mod_auth_mellon -- Redirect URL validation bypass

2021-07-3000:00:00
vuxml.freebsd.org
20
mod_auth_mellon
redirect url
validation bypass
fishing-site.example.com

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.003

Percentile

69.2%

Jakub Hrozek reports:

Version 0.17.0 and older of mod_auth_mellon allows the redirect URL
validation to be bypassed by specifying an URL formatted as
///fishing-site.example.com/logout.html

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchmod_auth_mellon< 0.18.0UNKNOWN

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.003

Percentile

69.2%