Computer Associates Brightstor ARCserve Mediasvr.exe String Handling Overflow
| Notification Type: |
IBM Internet Security Systems Protection Advisory |
| Notification Date: |
Jan 11, 2007 |
| Notification Version: |
1.2 |
| |
|
| Name: |
Computer Associates Brightstor ARCserve Mediasvr.exe String Handling Overflow |
Public disclosure/
In the wild date: |
Jan 11, 2007 (vuln) |
| CVE: |
CVE-2006-5172 |
| Description: |
IBM Internet Security Systems X-Force has discovered two remotely exploitable vulnerabilities in CA Brightstor ARCserve mediasvr.exe service. The second vulnerability, XFID 29344, is a stack based overflow in the RPC interface that can be triggered over SUNRPC. By sending a specially crafted packet, it is possible to trigger the stack-based buffer overflow ultimately resulting in remote code execution. ISS products have provided protection for this vulnerability since Nov. 14, 2006. |
ISS Coverage |
| Product |
Content Version |
Network Sensor 7.0
Proventia A
Proventia IPS (G/GX) prior to Firmware Version 1.2
Server Sensor 7.0 |
24.51 |
Proventia IPS (G/GX) Firmware Version 1.2 or
later
Proventia Multifunction Appliance
Proventia Server (Linux) |
1.90 |
| Proventia Server (Windows) |
1.0.914.1910 |
| Proventia Desktop |
8.0.x.1910 |
| RealSecure Desktop 7.0 |
EPW |
| BlackICE PC Protection 3.6 |
CPW |
|
|
|
| Detection Techniques |
ISS Protection |
Available |
| vulnerability assessment |
tbd |
tbd |
|
Detailed Description |
| Business Impact: |
Compromise of networks and machines using affected versions of Brightstor ARCserve may lead to exposure of confidential information, loss of productivity, and further network compromise. An attacker does not need to entice any kind of user interaction to trigger this vulnerability. Successful exploitation could grant an attacker administrative privileges on the target machine. |
| CVSS: |
Base Score: |
10.0 |
| |
Access Vector: |
Remote |
| Access Complexity: |
Low |
| Authentication: |
Not Required |
| Confidentiality Impact: |
Complete |
| Integrity Impact: |
Complete |
| Availability Impact: |
Complete |
| Impact Bias: |
Normal |
| Adjusted Temporal Score: |
7.4 |
| |
Exploitability: |
Unproven |
| Remediation Level: |
Official Fix |
| Report Confidence: |
Confirmed |
| Affected Products: |
BrightStor Products:
- BrightStor ARCserve Backup r11.5
- BrightStor ARCserve Backup r11.1
- BrightStor ARCserve Backup for Windows r11
- BrightStor Enterprise Backup r10.5
- BrightStor ARCserve Backup v9.01
CA Protection Suites r2:
- 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 |
| Remedy: |
Patches for this issue were available Jan. 11, 2007. Apply the appropriate fix for your system (QO84983, QO84984, QI82917, QO84986, or QO84985), available from the CA SupportConnect Web site. See References. |
| Technical Description: |
CA Brightstor ARCserve is a cross platform backup and recovery solution for small to medium sized businesses. BrightStor ARCserve Backup protects and helps ensure the availability of critical applications and data. Brightstor ARCserve is widely deployed in enterprise environments.
The vulnerability exists in the SUNRPC interface where a user definable length is used for several strncpy()’s to static size stack buffers. The user definable string data is then copied to the stack buffer potentially causing an overflow.
This vulnerability does not require any user interaction to be exploited.
An exploit for this vulnerability is very reliable. |
| Credit: |
This vulnerability was researched and discovered by Paul Mehta a member of IBM Internet Security Systems X-Force. |
|
References |
|
|
Revision History |
| 1.0 |
Initial advisory. |
| 1.1 |
Added information about patches and a link to Computer Associate's advisories. |
| 1.2 |
Corrected two typos in the description. |
|
|
About IBM Internet Security Systems
IBM Internet Security Systems is the trusted security advisor to thousands of the world's leading businesses and governments, providing pre-emptive protection for networks, desktops and servers. An established leader in security since 1994, the IBM Proventia® integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shielding customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force® research and development team – the unequivocal world authority in vulnerability and threat research. The Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the Internet Security Systems Web site at www.iss.net or call 800-776-2362.
|
