Dropbox API: (35) Unsupported SSL protocol version

anyhow – why is the plugin trying to enforce SSLv3? TLSv1 should be favourable since its an upgrade of the older SSLv3.

so .. curl 7.35.0 installed on my machine and like suspected – the error ‘(35) Unsupported SSL protocol version’ is gone

@ckarich

ooops, my mistake, was accidentally checking curl in shell on different terminal! This server has curl 7.22 installed (no 35 error)

I was still curious and installed curl 7.35 on the server causing errors
Now, no 35 error : -)

with curl 7.35 the error goes way, shame on my arch linux curl 7.35 is in testing repository.. ??

No, at least on Gentoo Linux here the upgrade to curl-7.35 did NOT resolve the issue. Still getting the same “Dropbox API: (35) Unsupported SSL protocol version” error. And seems that I’m not the only one with >=curl-7.34 issues: https://sourceforge.net/p/curl/bugs/1319/

on my gentoo box, the update to curl-7.35 did the trick like I said above. had to restart apache though before it took effect (the version overview/information page in backWpup-Settings helped me noticing that)

but like i said before – there is no need for those 3 lines in the code. enforcing SSLv3 does not make sense to me from a security point of view. you should be fine commenting out the 3 occurences of that CURLOPT_SSLVERSION (see above). the connection still gets secured – the handshake should be done via tls instead.

Oh yes, apache restart (facepalm). Well, I’m still getting the error on some sites while testing curl via command line, so curl is not completely fixed, but as far as BackWPUp and Dropbox is concerned the issue is gone provided you avoid curl-7.34*

So this means when your depending on a host (like me) the plugin wont work until Curl 7.35 is installed?! Shame

Resolved?

With SSL backend will used for curl? See “[Info] curl ver.:” in a logfile.

I’m getting dreaded Dropbox API: (59) Unknown cipher in list

WordPress version 3.8.1
BackWPup version 3.1.2
PHP version 5.3.28
MySQL version 5.0.92-50-log
cURL version 7.19.7
cURL SSL version NSS/3.14.0.0
Server Apache
Operating System Linux
PHP SAPI cgi-fcgi
Current PHP user lmpogoda
Disabled PHP Functions: exec, system, shell_exec, passthru, proc_open, proc_close, popen

Any chances for bugfix?

Also, noticed that there’s in button for de-authentication of Dropbox connection ??
I removed BackWPup from list of authenticated apps from Dropbox side, yet BackWPup claims it is still authenticated ??

Now I wonder how to put that connection back in order ??

You can Download a min Plugin from https://marketpress.com/wp-content/uploads/2014/03/backwpup-disable-ssl-verify.zip with this activateed it will work again. It has to do with the cURL SSL Version. I will made a update in next time so that it works again without that Plugin.

I’ve been using this plugin successfully for several months but with this last backup I got this error…
ERROR: Dropbox API: (35) error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure
Will the backwpup-disable-ssl-verify plugin fix this issue also?

Thanks

updating to 3.1.4 fixed the problem.