Computer Associates (CA) Brightstor ARCserve Backup mediasvr.exe buffer overflow
| brightstor-mediasvr-bo (33316) |  High Risk |
Description:
CA Brightstor ARCserve Backup is vulnerable to a buffer overflow, caused by improper bounds checking by the RPC service in the mediasvr.exe application. By sending a RPC packet containing specially-crafted xdr_handle_t data, a remote attacker could overflow a buffer and execute arbitrary code on the system with SYSTEM privileges or cause the application to crash.
Platforms Affected:
- CA, BrightStor ARCserve Backup 11.1
- CA, BrightStor ARCserve Backup 11.5
- CA, BrightStor ARCserve Backup for Windows 11
- CA, BrightStor ARCserve Backup for Windows 9.01
- CA, BrightStor Enterprise Backup 10.5
- CA, Business Protection Suite 2.0
- CA, Business Protection Suite for Microsoft Small Business Server 2 Premium
- CA, Business Protection Suite for Microsoft Small Business Server 2 Standard
- CA, Server Protection Suite 2
Remedy:
Refer to the CA SupportConnect Web site for patch, upgrade, or suggested workaround information. See References.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Fri Mar 30 2007 - 19:59:12 CDT , CA BrightStor ARCserve Backup Mediasvr.exe vulnerability at http://archives.neohapsis.com/archives/bugtraq/2007-03/0418.html.
- CA Brightstor ARCserve Backup Web site, BrightStor ARCserve Backup, Storage Management at http://www3.ca.com/solutions/ProductFamily.aspx?ID=115.
- CA SupportConnect, BrightStor ARCserve Backup Media Server Security Notice at http://supportconnectw.ca.com/public/storage/infodocs/babmedser-secnotice.asp.
- Full-Disclosure Mailing List, Thu Mar 29 2007 - 20:30:00 CDT, CA Brightstor Backup Mediasvr.exe Remote Code Vulnerability at http://archives.neohapsis.com/archives/fulldisclosure/2007-03/0467.html.
- BID-23209: Computer Associates BrightStor ARCserve Backup MediaSVR.EXE 191 Buffer Overflow Vulnerability
- CVE-2007-1785: The RPC service in mediasvr.exe in CA BrightStor ARCserve Backup 11.5 SP2 build 4237 allows remote attackers to execute arbitrary code via crafted xdr_handle_t data in RPC packets, which is used in calculating an address for a function call, as demonstrated using the 191 (0xbf) RPC request.
- FrSIRT/ADV-2007-1161: CA BrightStor ARCserve Backup RPC Request Remote Code Execution Vulnerability
- SA24682: CA BrightStor ARCserve Backup MEDIASVR.EXE RPC Request Code Execution
- SECTRACK ID: 1017830: CA BrightStor Backup Buffer Overflow in Mediasvr.exe Lets Remote Users Execute Arbitrary Code
- US-CERT VU#151305: CA Brightstor ARCserve Backup fails to properly process RPC requests
Reported:
Mar 30, 2007
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