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Helix Universal Server Remotely Exploitable Vulnerability
Secunia Advisory: SA9593
Release Date: 2003-08-25
Last Update: 2003-09-15
Popularity: 5,325 views

Critical:
Highly critical
Impact: System access
Where: From remote
Solution Status: Vendor Patch

Software:Helix Universal Server 9.x
RealServer G2
RealSystem Server 7
RealSystem Server 8

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Description:
A vulnerability has been reported in Helix Universal Server, RealServer, and RealSystem Server possibly allowing malicious people to gain system access.

The problem is that "vsrcplin.so.9.0" / "vsrcplin.so.6.0" / "vsrc3260.dll" plugins fails to handle long requests. This may allow malicious people to execute arbitrary code.

Solution:
Updated versions are available:

Tru64
http://forms.real.com/rnforms/product...ic&version=Helix+Universal+Server

FreeBSD
http://forms.real.com/rnforms/product...ic&version=Helix+Universal+Server

HP UX
http://forms.real.com/rnforms/product...ic&version=Helix+Universal+Server

IBM AIX
http://forms.real.com/rnforms/product...ic&version=Helix+Universal+Server

Linux
http://forms.real.com/rnforms/product...ic&version=Helix+Universal+Server

Solaris 2.7
http://forms.real.com/rnforms/product...ic&version=Helix+Universal+Server

Solaris 2.8
http://forms.real.com/rnforms/product...ic&version=Helix+Universal+Server

Windows
http://forms.real.com/rnforms/product...ic&version=Helix+Universal+Server

Provided and/or discovered by:
Dave Aitel, Immunity

Changelog:
2003-08-25: Updated credits. Updated with link to Dave Aitel's advisory.
2003-08-29: Updated the file names due to changes in the original Real advisory.
2003-08-31: Added link to CERT vulnerability note in "Other References" section.
2003-09-15: Added information about updated versions.

Original Advisory:
http://www.service.real.com/help/faq/security/rootexploit082203.html
http://lists.immunitysec.com/pipermail/dailydave/2003-August/000030.html
http://www.service.real.com/help/faq/security/rootexploit091103.html

Other References:
CERT:
http://www.kb.cert.org/vuls/id/934932


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