Hi,
A vulnerability has been disclosed in OpenSSL's SSL_Get_Shared_Ciphers
() function[1]. This vulnerability may affect the Nessus plugin
ssl_ciphers.nes which uses this function and might be used by an
attacker to break into a Nessus scanner by setting up a rogue SSL
server and waiting for it to be scanned.
To avoid being vulnerable, make sure to upgrade the SSL libraries
your Nessus servers are running on (refer to your OS vendor for
this). If you do not have the ability to upgrade your SSL libraries,
or if you OS vendor is slow to produce a patch, deleting the file /
opt/nessus/lib/nessus/plugins/ssl_ciphers.nes is a possible workaround.
Thanks,
-- Renaud
[1] http://www.securityfocus.com/bid/20249
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