ZDI-07-049: EMC Legato Networker Remote Exec Service Stack Overflow Vulnerabilities Aug 20 2007 08:40PM
zdi-disclosures 3com com
ZDI-07-049: EMC Legato Networker Remote Exec Service Stack Overflow

Vulnerabilities

http://www.zerodayinitiative.com/advisories/ZDI-07-049.html

August 20, 2007

-- CVE ID:

CVE-2007-3618

-- Affected Vendor:

EMC Software

-- Affected Products:

Networker 7.x.x

-- TippingPoint(TM) IPS Customer Protection:

TippingPoint IPS customers have been protected against this

vulnerability since August 16, 2007 by Digital Vaccine protection

filter ID 5259. For further product information on the TippingPoint IPS:

http://www.tippingpoint.com

-- Vulnerability Details:

These vulnerabilities allow remote attackers to execute arbitrary code

on vulnerable installations of EMC Networker. Authentication is not

required to exploit this vulnerability.

The specific flaws exist in the Networker Remote Exec Service,

nsrexecd.exe. The location of this service is available by querying the

SUNRPC portmapper on TCP port 111 for service #0x5f3e1, version 1. When

supplying a long invalid subcmd to a poll or a kill request, an

exploitable stack overflow vulnerability can occur within a call to

sprintf().

-- Vendor Response:

EMC has issued updates to correct this vulnerability. More details can

be found in knowledge base article esg83899 available from

powerlink.emc.com. EMC customers can further contact EMC Software

Technical Support at 1-877-534-2867.

-- Disclosure Timeline:

2007.02.23 - Vulnerability reported to vendor

2007.08.16 - Digital Vaccine released to TippingPoint customers

2007.08.20 - Coordinated public release of advisory

-- Credit:

This vulnerability was discovered by Tenable Network Security.

-- 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.

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