Citadel/UX Buffer Overflow in USER Command Lets Remote Users Crash the Service
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SecurityTracker Alert ID: 1010809
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SecurityTracker URL: http://securitytracker.com/id?1010809
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CVE Reference: GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Jul 29 2004
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Impact: Denial of service via network
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Exploit Included: Yes
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Version(s): 6.23 and prior versions
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Description: A vulnerability was reported in Citadel/UX. A remote user can cause the service to crash.
No System Group reported that a remote user can connect to the target system on port 504 and send a USER command with more than 97
bytes to trigger a buffer overflow and cause the service to crash.
The report indicates that the EIP register can be overwritten
with user-supplied input, but that the user-supplied input is converted to lower-case before the overflow is triggered. As a result,
completely arbitrary input is not permitted.
A demonstration exploit is included in the original advisory, available at:
http://www.nosystem.com.ar/advisories/advis
ory-04.txt
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Impact: A remote user can cause the target service to crash.
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Solution: No solution was available at the time of this entry.
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Vendor URL: www.citadel.org/ (Links to External Site)
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Cause: Boundary error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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