https://bugzilla.wikimedia.org/show_bug.cgi?id=73644
Bug ID: 73644
Summary: Payment processor website uses RC4 for https
encryption
Product: Wikimedia
Version: wmf-deployment
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Unprioritized
Component: Fundraising
Assignee: wikibugs-l@lists.wikimedia.org
Reporter: axel+wikime...@axelsimon.net
CC: fr-t...@wikimedia.org
Web browser: ---
Mobile Platform: ---
Hi,
When trying to make a donation, after entering the amount I wanted to donate I
was redirected to a server, ott9.wpstn.com.
From what I can tell, it's a WorldPay.ca (payment processor) server.
Having configured Firefox to refuse all connections using the RC4 cipher for
SSL/TLS (as RC4 is deprecated and considered insecure), I was not able to
establish a connection to the server (Firefox shows the “no cipher overlap”
error).
An SSL test for the domain shows that it indeed offers RC4 (and nothing else):
https://www.ssllabs.com/ssltest/analyze.html?d=ott9.wpstn.com
This is bad. RC4-encrypted traffic has been likened by some infosec researchers
to “no encryption” and the NSA can allegedly break it in real-time.
Here is the (very poor) list of ciphers offered by the server:
TLS_RSA_WITH_RC4_128_MD5 (0x4) 128
TLS_RSA_WITH_RC4_128_SHA (0x5) 128
TLS_ECDHE_RSA_WITH_RC4_128_SHA (0xc011) ECDH 571 bits (eq. 15360 bits RSA)
FS 128
Furthermore, the server is still offering SSLv3. That should also be disabled,
following the POODLE vulnerability published about a month ago.
The server should be offering modern encryption (forward secrecy, no SSL,
strong non-deprecated ciphers).
Here is a good guide on how to do it on Apache2:
https://raymii.org/s/tutorials/Strong_SSL_Security_On_Apache2.html
I hope this can be resolved quickly as the Wikipedia fundraising campaign is
ongoing and I don't feel comfortable giving in such conditions nor recommending
others do so, even if I believe it is really important they do support
Wikipedia, when the payment processor's security is in such a sad state.
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