Published: December 05 2007, 09:40 AM | no comments
by Ken Williams

On 2007-10-10, we released BrightStor ARCserve Backup patches to address multiple vulnerabilities.  We subsequently determined that some of the vulnerability issues were not completely remediated.  So, we have now released new patches that completely resolve all of the vulnerability issues.  Updated security notice below.

Title: [CAID 35724, 35725, 35726]: CA BrightStor ARCserve Backup Multiple Vulnerabilities

CA Vuln ID (CAID): 35724, 35725, 35726

CA Advisory Date: 2007-10-10
CA Advisory Updated: 2007-12-05

Reported By:
Anonymous researcher working with the iDefense VCP (CVE-2007-5325)
Dyon Balding of Secunia Research (CVE-2007-5326)
Cocoruder of Fortinet Security Research Team (CVE-2007-5327)
Tenable Network Security (CVE-2007-5328)
Pedram Amini of DV Labs (dvlabs.tippingpoint.com) (CVE-2007-5329)
Dyon Balding of Secunia Research (CVE-2007-5330)
eEye Digital Security (CVE-2007-5331)
shirkdog (CVE-2007-5332)

Impact: A remote attacker can cause a denial of service, execute arbitrary code, or take privileged action.

Summary: Multiple vulnerabilities exist in BrightStor ARCserve Backup that can allow a remote attacker to cause a denial of service, execute arbitrary code, or take privileged action. The first set of vulnerabilities, CVE-2007-5325, CVE-2007-5326, and CVE-2007-5327, occur due to insufficient bounds checking by multiple components. The second vulnerability, CVE-2007-5328, occurs due to privileged functions being available for use without proper authorization. The third set of vulnerabilities, CVE-2007-5329, CVE-2007-5330, CVE-2007-5331, and CVE-2007-5332, are due to a memory corruption occurring with the processing of RPC procedure arguments by multiple services. The vulnerabilities allow an attacker to cause a denial of service, or potentially to execute arbitrary code.

Note: Updated patches are available. The original patches did not fully address some issues. Special thanks to Dyon Balding of Secunia and to Fortinet for reporting issues with the original patches.

Mitigating Factors:
None

Severity: CA has given these vulnerabilities a maximum risk rating of High.

Affected Products:
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
CA Business Protection Suite for Microsoft Small Business Server Standard Edition r2
CA Business Protection Suite for Microsoft Small Business Server Premium Edition r2

Affected Platforms:
Windows

Status and Recommendation:
CA has issued the following patches to address the
vulnerabilities.
BrightStor ARCserve Backup r11.5 - QO92996
BrightStor ARCserve Backup r11.1, - QO92849
BrightStor ARCserve Backup r11.0 - Upgrade to 11.1 and apply the latest patches.
BrightStor Enterprise Backup r10.5 - Upgrade to 11.5 and apply the latest patches.
BrightStor ARCserve Backup v9.01 - QO92848
CA Protection Suites r2: QO92996

How to determine if you are affected:
1. Using Windows Explorer, locate the file “asdbapi.dll”. By default, the file is located in the “C:\Program Files\CA\BrightStor ARCserve Backup” directory.
2. Right click on the file and select Properties.
3. Select the General tab.
4. If the file timestamp is earlier than indicated in the table below, the installation is vulnerable.

Version    File Name      Timestamp                   File Size
11.5         asdbapi.dll     10/24/2007 08:43:08      1249354 bytes
11.1         asdbapi.dll     10/19/2007 17:56:00       856064 bytes
9.01         asdbapi.dll     10/19/2007 18:02:22       700416 bytes

* For Protection Suites r2, follow instructions for BrightStor ARCserve Backup r11.5.

Workaround: None

References (URLs may wrap):
CA SupportConnect:
http://supportconnect.ca.com/
BrightStor ARCserve Backup Security Notice
http://supportconnectw.ca.com/public/storage/infodocs/basb-secnotice.asp
Solution Document Reference APARs:
QO92996, QO92849, QO92848, QO92996
CA Security Response Blog posting:
New patches available to address CA BrightStor ARCserve Backup multiple vulnerabilities
http://community.ca.com/blogs/casecurityresponseblog/archive/2007/12/05.aspx
CA Vuln ID (CAID): 35724, 35725, 35726
http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=35724
http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=35725
http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=35726
Reported By:
Anonymous researcher working with the iDefense VCP (CVE-2007-5325)
http://labs.idefense.com/intelligence/vulnerabilities/

Dyon Balding of Secunia Research (CVE-2007-5326)
CA BrightStor ARCserve Backup RPC String Buffer Overflow
http://secunia.com/secunia_research/2007-49/advisory/

Cocoruder of Fortinet Security Research Team (CVE-2007-5327)
Advisory: Vulnerability Affecting CA BrightStor ARCServe BackUp
http://www.fortiguardcenter.com/advisory/FGA-2007-11.html

Tenable Network Security (CVE-2007-5328)
http://www.tenablesecurity.com/solutions/
http://www.zerodayinitiative.com/advisories/ZDI-07-069.html

Pedram Amini of DV Labs (dvlabs.tippingpoint.com) (CVE-2007-5329)
http://www.zerodayinitiative.com/advisories.html

Dyon Balding of Secunia Research (CVE-2007-5330)
CA BrightStor ARCserve Backup RPC Argument Parsing Vulnerabilities
http://secunia.com/secunia_research/2007-62/advisory/

eEye Digital Security (CVE-2007-5331)
http://research.eeye.com/html/advisories/published/AD20071011.html

shirkdog (CVE-2007-5332)
Shirkdog Security Advisory SHK-005 - Computer Associates (CA) Brightstor Backup caloggderd.exe DoS (camt70.dll)
http://www.shirkdog.us/shk-005.html
Shirkdog Security Advisory SHK-006 - Computer Associates (CA) Brightstor Backup Mediasvr.exe DoS (catirpc.dll/rwxdr.dll)
http://www.shirkdog.us/shk-006.html

CVE References:
CVE-2007-5325 - Message Engine and AScore.dll buffer overflows
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5325
CVE-2007-5326 - RPC and rpcx.dll buffer overflows
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5326
CVE-2007-5327 - Message Engine buffer overflows
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5327
CVE-2007-5328 - Privileged function exposure
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5328
CVE-2007-5329 - dbasvr memory corruption
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5329
CVE-2007-5330 - RPC service memory corruption
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5330
CVE-2007-5331 - lqserver and media server memory corruption
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5331
CVE-2007-5332 - mediasvr and caloggerd memory corruption
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5332
OSVDB References: Pending
http://osvdb.org/

Changelog for this advisory:
v1.0 - Initial Release
v1.1 - Provided updated patch information, modified file information in "How to determine if you are affected" section.

Customers who require additional information should contact CA Technical Support at http://supportconnect.ca.com.

For technical questions or comments related to this advisory, please send email to vuln AT ca DOT com.

If you discover a vulnerability in CA products, please report your findings to vuln AT ca DOT com, or utilize our "Submit a Vulnerability" form.
URL: http://www.ca.com/us/securityadvisor/vulninfo/submit.aspx