- "Crash" means it terminates the Jenkins process.
   - We also assume it was a kind of attack. We use additional webserver 
   authentication with Jenkins since then and have not seen the error again.



On Friday, August 25, 2017 at 9:10:59 AM UTC+2, Daniel Beck wrote:
>
>
> > On 10. Feb 2017, at 09:50, [email protected] <javascript:> wrote: 
> > 
> > Since a few days I see crashes on Jenkins: 
> (/var/log/jenkins/jenkins.log) 
>
> To clarify, when you write "crash" you mean "logs a warning"? Or does it 
> actually terminate the Jenkins process? 
>
> > Feb 10, 2017 4:35:15 AM hudson.security.csrf.CrumbFilter doFilter 
> > WARNING: No valid crumb was included in request for /azenv.php. 
> Returning 403. 
>
> Looks like someone's sending `POST /azenv.php`, an URL that doesn't exist 
> in Jenkins. Probably an automated (exploit?) script unrelated to Jenkins. 
>
>

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