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Basically the telnet service daemon on Solaris 10 and 11 can be trivially exploited to allow unauthenticated login as any user, including root. The only complete fix is to disable the telnet service (which shouldn't be enabled in the first place, because you should be using ssh).
Hi guys. Just wanted to give anyone reading this thread a heads-up that at least one worm using this exploit is out in the wild.
Quote:
A computer worm is using a recently disclosed flaw in Sun Microsystems' operating system to propagate, experts have warned.
The worm attempts to log into systems running Solaris 10, execute a number of commands to plant itself and then spread to other vulnerable computers, Jose Nazario, a senior software engineer at Arbor Networks, wrote on his company's blog on Tuesday in the US. Arbor sells network analysis products.
Sun confirmed the threat on Wednesday in an updated alert on its Web site. "There is at least one worm in existence that is making use of this exploit to compromise system integrity," Sun warned.
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