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Netcat "SessionWriteShellThreadFn()" Buffer Overflow
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Secunia Advisory:
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SA13609
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Release Date:
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2004-12-28
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Last Update:
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2005-01-03
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Popularity:
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5,687 views
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| Software: | Netcat for Windows 1.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:
class101 has reported a vulnerability in Netcat for Windows, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in the "SessionWriteShellThreadFn()" function in "doexec.c" when writing to a pipe connected to a shell process. This can be exploited to cause a buffer overflow by sending specially crafted overly long data to a listening port.
Successful exploitation allows execution of arbitrary code, but requires that Netcat has been invoked with the "-e" command line option.
NOTE: Exploit code has been published on a public mailing list.
The vulnerability has been reported in version 1.1. Prior 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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