Log invalid passwords

[Tom Barber]

Hello folks,

I've grepped around but can't find anything so far.

Can you log failed authentication attempts? Simply stuff like when a users password is incorrect.

Thanks

Tom

[Tom Barber]

Yeah I do the ones that are successful. Maybe its because I'm just testing using the in memory username:password, I'll double check against ldap in a bit, I wouldn't have though it'd make a difference though.

Tom

On Wed, Oct 12, 2016 at 2:07 PM, Patrick Gardella <patrick....@asburyseminary.edu> wrote:

Do you see successful ones? The only difference in what is logged would be that the ACTION says "AUTHENTICATION_SUCCESS"

Patrick

On Wed, Oct 12, 2016 at 9:03 AM, Tom Barber <tom.b...@meteorite.bi> wrote:

Interesting Patrick, thanks for that. I have the audit log going but I don't see any failed authentication calls. Odd.

Tom

On Wed, Oct 12, 2016 at 1:59 PM, Patrick Gardella <patrick.gardella@asburyseminary.edu> wrote:

Do you mean you just want to log that the login failed for a user? Not to print the password itself they used?

You can do this in your log4j2.xml (depending on your CAS version - I'm using 4.2.6) by adding something like this in the Appenders section:

        <RollingFile name="auditlogfile" fileName="logs/cas_audit.log" append="true"

                     filePattern="logs/cas_audit-%d{yyyy-MM-dd}-%i.log.gz">

            <PatternLayout pattern="%d %p [%c] - %m%n"/>

            <Policies>

                <OnStartupTriggeringPolicy />

                <SizeBasedTriggeringPolicy size="10 MB"/>

                <TimeBasedTriggeringPolicy />

            </Policies>

        </RollingFile>

and this in the Loggers section:

        <AsyncLogger name="org.jasig.inspektr.audit.support" level="info" includeLocation="true">

            <AppenderRef ref="auditlogfile"/>

        </AsyncLogger>

This should print failures:

2016-10-12 00:02:04,455 INFO [org.jasig.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - Audit trail record BEGIN

=============================================================

WHO: johnsmith

WHAT: Supplied credentials: [johnsmith]

ACTION: AUTHENTICATION_FAILED

APPLICATION: CAS

WHEN: Wed Oct 12 00:02:04 UTC 2016

CLIENT IP ADDRESS: 192.168.1.1.

SERVER IP ADDRESS: 192.168.25.10

=============================================================

Patrick+

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[Tom Barber]

Interesting Patrick, thanks for that. I have the audit log going but I don't see any failed authentication calls. Odd.

Tom

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