Rocket Software UniData <= 7.2.7.3806 Denial of Service Vulnerabilities

2010-10-16 09:16:06

Source: http://aluigi.org/adv/unirpcd_1-adv.txt
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Luigi Auriemma

Application: Rocket Software UniData
http://www.rocketsoftware.com/u2/products/unidata/
Versions: <= 7.2.7.3806
Platforms: Windows
Bugs: various Denial of Service vulnerabilities in unirpcd.exe
Exploitation: remote, versus server
Date: 15 Oct 2010
Author: Luigi Auriemma
e-mail: [email protected]
web: aluigi.org


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1) Introduction
2) Bugs
3) The Code
4) Fix


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===============
1) Introduction
===============


"UniData® is an extended relational data server ideal for embedding in
a variety of industry-focused solutions."


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2) Bugs
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The unirpc service listening on port 31438 is affected by various
Denial of Service vulnerabilities regarding the access of invalid zones
of memory.

Although the first vulnerability is a memory corruption problem where
the program calls recv() using a heap buffer and a huge amount of data
to copy (like 0x7fffffe8, decided by the attacker) in my tests it
didn't result exploitable.


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3) The Code
===========


http://aluigi.org/poc/unirpcd_1.zip
http://www.exploit-db.com/sploits/unirpcd_1.zip

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4) Fix
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No fix.


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Fixes

No fixes

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