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Category:   Application (Generic)  >   CA ARCserve Backup Vendors:   CA
CA BrightStor ArcServe Media Server Buffer Overflows Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1017952
SecurityTracker URL:
CVE Reference:   CVE-2007-2139   (Links to External Site)
Date:  Apr 25 2007
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 11.5 SP3 and prior versions
Description:   A vulnerability was reported in BrightStor ARCserve. A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted RPC strings to trigger one of several stack overflows and execute arbitrary code on the target system. The code will run with the privileges of the target service.

The vendor was notified on March 8, 2007.

Tenable Network Security discovered this vulnerability. TippingPoint reported this vulnerability.

The original advisory is available at:

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued the following patches.

BrightStor ARCserve Backup r11.5 SP3 - QO87569
BrightStor ARCserve Backup r11.5 SP2 - QO87570
BrightStor ARCserve Backup r11.1 - QO87573
BrightStor ARCserve Backup r11.0 - QI82917
BrightStor Enterprise Backup r10.5 - QO87575
BrightStor ARCserve Backup v9.01 - QO87574

The CA advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

Subject:  ZDI-07-022: CA BrightStor ArcServe Media Server Multiple Buffer Overflow

ZDI-07-022: CA BrightStor ArcServe Media Server Multiple Buffer Overflow
April 24, 2007

-- CVE ID:

-- Affected Vendor:
Computer Associates

-- Affected Products:
BrightStor ARCserve Backup r11.5 SP2
BrightStor ARCserve Backup r11.5
BrightStor ARCserve Backup r11.1
BrightStor ARCserve Backup r11 for Windows
BrightStor Enterprise Backup r10.5
BrightStor ARCserve Backup v9.01
CA Server Protection Suite r2
CA Business Protection Suite r2

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since April 19, 2007 by Digital Vaccine protection
filter ID 5211. For further product information on the TippingPoint IPS: 

-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on
vulnerable installations of Computer Associates BrightStor ARCserve
Media Server. User interaction is not required to exploit this

The specific flaw exists in the SUN RPC service which binds to a
randomly chosen high TCP port. The target port can be obtained by
querying the port mapper. Multiple stack-based buffer overflows exist
during the parsing of malformed RPC strings. Exploitation of these
overflows can result in arbitrary code execution.

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

-- Disclosure Timeline:
2007.03.08 - Vulnerability reported to vendor
2007.04.19 - Digital Vaccine released to TippingPoint customers
2007.04.24 - 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:

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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