bugtraq - ZDI-07-009: Novell Netmail WebAdmin Buffer Overflow Vulnerability

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Date: Wed, 7 Mar 2007 11:53:03 -0800
From: zdi-disclosures@...m.com
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Cc: zdi-disclosures@...m.com
Subject: ZDI-07-009: Novell Netmail WebAdmin Buffer Overflow Vulnerability

ZDI-07-009: Novell Netmail WebAdmin Buffer Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-07-009.html
March  7, 2007

-- CVE ID:
CVE-2007-1350

-- Affected Vendor:
Novell

-- Affected Products:
Novell NetMail 3.5.2

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since December 14, 2006 by Digital Vaccine protection
filter ID 4927. For further product information on the TippingPoint IPS:

    http://www.tippingpoint.com 

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Novell NetMail. Authentication is not
required to exploit this vulnerability.

The specific flaw exists in the webadmin.exe process bound by default
on TCP port 89. During HTTP Basic authentication, a long username of at
least 213 bytes will trigger a stack based buffer overflow due to a
vulnerable sprintf() call. Exploitation of this issue can result in
arbitrary code execution.

-- Vendor Response:
Novell has issued an update to correct this vulnerability. More details
can be found at:

http://download.novell.com/Download?buildid=sMYRODW09pw

-- Disclosure Timeline:
2006.12.12 - Vulnerability reported to vendor
2006.12.14 - Digital Vaccine released to TippingPoint customers
2007.03.07 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by an anonymous researcher.

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, a division of 3Com, The Zero Day Initiative
(ZDI) represents a best-of-breed model for rewarding security
researchers for responsibly disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is used.
3Com does not re-sell the vulnerability details or any exploit code.
Instead, upon notifying the affected product vendor, 3Com provides its
customers with zero day protection through its intrusion prevention
technology. Explicit details regarding the specifics of the
vulnerability are not exposed to any parties until an official vendor
patch is publicly available. Furthermore, with the altruistic aim of
helping to secure a broader user base, 3Com provides this vulnerability
information confidentially to security vendors (including competitors)
who have a vulnerability protection or mitigation product.