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Serial Line Sniffer "HOME" Environment Variable Buffer Overflow
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Secunia Advisory:
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SA18497
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Release Date:
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2006-01-16
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Last Update:
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2006-08-04
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Critical:
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Less critical
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Impact:
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Privilege escalation
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Where:
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Local system
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Solution Status:
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Unpatched
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| Software: | Serial Line Sniffer (slsnif) 0.x
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| | CVE reference: | CVE-2006-0196 (Secunia mirror)
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This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
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Description:
Sintigan has discovered a vulnerability in Serial Line Sniffer (slsnif), which potentially can be exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused due to a boundary error in "readRC()" in the handling of the "HOME" environment variable. This can be exploited to cause a stack-based buffer overflow which potentially allows arbitrary code execution.
Successful exploitation requires that slsnif is setuid root.
The vulnerability has been confirmed in version 0.4.4. Other versions may also be affected.
Solution:
Remove the suid bits from the binary.
Provided and/or discovered by:
Sintigan
Changelog:
2006-08-04: Added CVE reference.
Original Advisory:
http://shellcoders.com/sintigan/slsnif-ploit.pl
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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