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PuTTY "puttygen" Insecure File Permissions
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Secunia Advisory:
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SA24381
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Release Date:
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2007-03-05
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Last Update:
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2007-06-26
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Popularity:
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7,599 views
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Critical:
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Not critical
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Impact:
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Exposure of sensitive information
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| Software: | PuTTY 0.x
PuTTY IPv6 0.x
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Description:
Daniel Kahn Gillmor has discovered a weakness in PuTTY, which can be exploited by malicious, local users to gain knowledge of sensitive information.
The weakness is caused due to "puttygen" generating new private keys with potentially insecure default file permissions, which can be exploited to disclose a user's private key.
The weakness is confirmed in version 0.58 on a Linux system. Other versions may also be affected.
Solution:
Update to version 0.59.
Provided and/or discovered by:
Daniel Kahn Gillmor
Changelog:
2007-06-26: Updated "Description" and "Solution" sections.
Original Advisory:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=400804
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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