Title: [CAID 35673, 35674, 35675, 35676, 35677]: CA ARCserve 
Backup for Laptops and Desktops Multiple Server Vulnerabilities

CA Vuln ID (CAID): 35673, 35674, 35675, 35676, 35677

CA Advisory Date: 2007-09-20

Reported By: Sean Larsson (VeriSign iDefense Labs)
             anonymous researcher working with the iDefense VCP
             eEye Digital Security


Impact: A remote attacker can execute arbitrary code or cause a 
denial of service condition.

Summary: CA ARCserve Backup for Laptops and Desktops contains 
multiple vulnerabilities that can allow a remote attacker to cause 
a denial of service condition or execute arbitrary code. The first 
set of vulnerabilities, CVE-2007-3216, occur due to insufficient 
bounds checking on multiple command arguments by the LGServer 
service. The second set of vulnerabilities, CVE-2007-5003, occur 
due to insufficient bounds checking on rxrLogin authentication 
credentials and on a username by the GetUserInfo() function. The 
third vulnerability, CVE-2007-5004, occurs due to insufficient 
verification of an integer value used during authentication, which 
can lead to integer overflow. The fourth vulnerability, 
CVE-2007-5005, occurs due to insufficient verification of file 
uploads by the NetBackup service. The fifth vulnerability, 
CVE-2007-5006, occurs due to insufficient verification of 
authorization credentials, which can enable an attacker to bypass 
authentication.

Mitigating Factors:
These issues can only be exploited on a server installation of CA 
ARCserve Backup for Laptops and Desktops. The client installation 
is not affected.

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

Affected Products:
CA ARCserve Backup for Laptops and Desktops r11.5
CA ARCserve Backup for Laptops and Desktops r11.1 SP2
CA ARCserve Backup for Laptops and Desktops r11.1 SP1
CA ARCserve Backup for Laptops and Desktops r11.1
CA ARCserve Backup for Laptops and Desktops r11.0
CA ARCserve Backup for Laptops and Desktops r4.0
CA Desktop Management Suite 11.2
CA Desktop Management Suite 11.1
CA Desktop Management Suite 11.0
CA Protection Suites r2

Affected Platforms:
Windows

Status and Recommendation:
CA has provided updates to address the vulnerabilities.

CA ARCserve Backup for Laptops and Desktops (BMB) r4.0:
Apply QO91013.

CA ARCserve Backup for Laptops and Desktops 11.1:
Apply QO91014.

CA Desktop Management Suite 11.1:
Apply QO91016.

CA Desktop Management Suite 11.2 English:
Apply QO91110.

CA ARCserve Backup for Laptops and Desktops 11.5:
Apply QO91015.

CA Desktop Management Suite 11.2 localized:
Apply QO91111.

How to determine if you are affected:
For Windows:
1. Using Windows Explorer, locate the file "rxRPC.dll". The file 
can be found in the following default locations:

Products \ Directory Paths
--------------------------
CA ARCserve Backup for Laptops and Desktops 11.5 
C:\Program Files\CA\BrightStor ARCserve Backup for Laptops & 
Desktops\Explorer 

CA ARCserve Backup for Laptops and Desktops 11.1 
C:\Program Files\CA\BrightStor ARCserve Backup for Laptops & 
Desktops\server 

CA ARCserve Backup for Laptops and Desktops (BMB) r4.0 
C:\Program Files\CA\BrightStor Mobile Backup\Server 

CA Desktop Management Suite 11.2 English 
C:\Program Files\CA\DSM\BABLD\MGUI 

CA Desktop Management Suite 11.2 localized 
C:\Program Files\CA\DSM\BABLD\MGUI 

CA Desktop Management Suite 11.1 
C:\Program Files\CA\Unicenter DSM\BABLD\Manager 

2. Right click on the file and select Properties.
3. Select the General tab.
4. If the file date is earlier than indicated in the table below, 
   the installation is vulnerable.

Product \ File Name \ File Date / Size 
----------------------------------------
CA ARCserve Backup for Laptops and Desktops 11.5 
rxRPC.dll 
June 25 2007 / 135168 bytes 

CA ARCserve Backup for Laptops and Desktops 11.1 
rxRPC.dll 
June 20 2007 / 114688 bytes 

CA ARCserve Backup for Laptops and Desktops (BMB) r4.0 
rxRPC.dll 
June 18 2007 / 106496 bytes 

CA Desktop Management Suite 11.2 English 
rxRPC.dll 
June 25 2007 / 126976 bytes 

CA Desktop Management Suite 11.2 localized 
rxRPC.dll 
July 03 2007 / 135168 bytes 

CA Desktop Management Suite 11.1 
rxRPC.dll 
July 03 2007 / 122880 bytes 


Workaround: None

References (URLs may wrap):
CA SupportConnect:
http://supportconnect.ca.com/
CA ARCserve Backup for Laptops and Desktops Server Security Notice
http://supportconnectw.ca.com/public/sams/lifeguard/infodocs/caarcservebld-securitynotice.asp
Solution Document Reference APARs:
QO91013, QO91014, QO91016, QO91110, QO91015, QO91111
CA Security Advisor posting:
CA ARCserve Backup for Laptops and Desktops Multiple Server 
Vulnerabilities
http://www.ca.com/us/securityadvisor/newsinfo/collateral.aspx?cid=156006
CA Vuln ID (CAID): 35673, 35674, 35675, 35676, 35677
http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=35673
http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=35674
http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=35675
http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=35676
http://www.ca.com/us/securityadvisor/vulninfo/vuln.aspx?id=35677
Reported By: Sean Larsson (VeriSign iDefense Labs)
             anonymous researcher working with the iDefense VCP
             eEye Digital Security
iDefense advisory:
http://labs.idefense.com/intelligence/vulnerabilities/
eEye advisory:
Multiple Vulnerabilities in CA ARCserve for Laptops & Desktops
http://research.eeye.com/html/advisories/published/AD20070920.html
CVE References:
CVE-2007-3216, CVE-2007-5003, CVE-2007-5004, CVE-2007-5005, 
CVE-2007-5006
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3216
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5003
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5004
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5005
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5006
OSVDB References: Pending
http://osvdb.org/

Changelog for this advisory:
v1.0 - Initial Release

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


Regards,
Ken Williams ; 0xE2941985
Director, CA Vulnerability Research

CA, 1 CA Plaza, Islandia, NY 11749
  
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