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OpenSSH CBC Mode Plaintext Recovery Vulnerability
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Secunia Advisory:
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SA32760
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Release Date:
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2008-11-17
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Last Update:
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2008-11-25
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Popularity:
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5,393 views
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Critical:
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Less critical
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Impact:
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Exposure of sensitive information
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Where:
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From local network
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Solution Status:
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Unpatched
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| Software: | OpenSSH 4.x
OpenSSH 5.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
A vulnerability has been reported in OpenSSH, which potentially can be exploited by malicious people to disclose sensitive information.
The vulnerability is caused due to the improper handling of errors within an SSH session encrypted with a block cipher algorithm in the CBC (Cipher-Block Chaining) mode. This can be exploited to potentially disclose up to 32 plaintext bits from an arbitrary block of ciphertext.
NOTE: An attack has a low probability of success, an attempt resulting in the termination of the current SSH session.
Successful exploitation requires that an attacker is able to read and alter network data.
This is related to:
SA32740
The vulnerability is reported in version 4.7p1. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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