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OpenSSH fixes client crypto key leak
iTnews ^ | Jan 15 2016 6:39AM (AUS) | Juha Saarinen

Posted on 01/14/2016 7:03:07 PM PST by Utilizer

OpenSSH developers have patched a serious flaw in the popular open source remote access protocol that could compromise encryption keys, with users urged to upgrade their OpenSSH installations straight away.

According to the advisory, the vulnerability has been blamed on an experimental roaming feature, aimed at resuming SSH connections, in OpenSSH versions 5.4 to 7.1.

Attackers who control servers could use the vulnerability to discover a client's private encryption keys, the OpenSSH developers said.

"The matching server code has never been shipped, but the client code was enabled by default and could be tricked by a malicious server into leaking client memory to the server, including private client user keys.

"The authentication of the server host key prevents exploitation by a man-in-the-middle, so this information leak is restricted to connections to malicious or compromised servers," the advisory said.

(Excerpt) Read more at itnews.com.au ...


TOPICS: Business/Economy; Computers/Internet
KEYWORDS: computing; crypto; security
Malicious servers can read client memory.
1 posted on 01/14/2016 7:03:07 PM PST by Utilizer
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To: Utilizer

Oy. This is one for the day job...


2 posted on 01/14/2016 8:10:51 PM PST by dayglored ("Listen. Strange women lying in ponds distributing swords is no basis for a system of government.")
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To: dayglored

Good luck with that, mate. :)

Cheers!


3 posted on 01/14/2016 9:55:30 PM PST by Utilizer (Bacon A'kbar! - In world today are only peaceful people, and the muzrims trying to kill them)
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