Computer Associates (CA) RPC Server DBASVR.exe buffer overflow
| ca-dbasvr-rpc-bo (29364) |  High Risk |
Description:
Multiple Computer Associates server backup products are vulnerable to a stack-based buffer overflow, caused by improper bounds checking within the Backup Agent RPC Server (DBASVR.exe). By sending a specially-crafted RPC request to TCP port 6071, a remote attacker could overflow a buffer and execute arbitrary code on the system with SYSTEM privileges.
*CVSS:
| Base Score: | 10 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 7.4 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Refer to the CA SupportConnect Security Notice for BrightStor ARCserve Backup for patch or upgrade information. See References.
References:
- BugTraq Mailing List, Thu Oct 19 2006 - 21:43:03 CDT: [CAID 34693, 34694]: CA BrightStor ARCserve Backup Multiple Buffer Overflow Vulnerabilities (UPDATED).
- CA SupportConnect Web site : Important Security Notice for BrightStor ARCserve Backup (Buffer Overrun).
- Full-Disclosure Mailing List, Thu Oct 19 2006 - 21:43:40 CDT: [CAID 34693, 34694]: CA BrightStor ARCserve Backup Multiple Buffer Overflow Vulnerabilities.
- TSRT-06-11: CA Multiple Product DBASVR RPC Server Multiple Buffer Overflow Vulnerabilities .
- BID-20365: Computer Associates Products Message Engine RPC Server Multiple Buffer Overflow Vulnerabilities
- CVE-2006-5143: Multiple buffer overflows in CA BrightStor ARCserve Backup r11.5 SP1 and earlier, r11.1, and 9.01; BrightStor ARCserve Backup for Windows r11; BrightStor Enterprise Backup 10.5; Server Protection Suite r2; and Business Protection Suite r2 allow remote attackers to execute arbitrary code via crafted data on TCP port 6071 to the Backup Agent RPC Server (DBASVR.exe) using the RPC routines with opcode (1) 0x01, (2) 0x02, or (3) 0x18; invalid stub data on TCP port 6503 to the RPC routines with opcode (4) 0x2b or (5) 0x2d in ASCORE.dll in the Message Engine RPC Server (msgeng.exe); (6) a long hostname on TCP port 41523 to ASBRDCST.DLL in the Discovery Service (casdscsvc.exe); or unspecified vectors related to the (7) Job Engine Service.
- SA22285: CA Products Multiple Buffer Overflow Vulnerabilities
- SECTRACK ID: 1017003: BrightStor ARCserve Buffer Overflows in Backup Agent, Job Engine and Discovery Services Let Remote Users Execute Arbitrary Code
- SECTRACK ID: 1017004: BrightStor Enterprise Backup Buffer Overflows in Backup Agent, Job Engine and Discovery Services Let Remote Users Execute Arbitrary Code
- SECTRACK ID: 1017005: CA Server Protection Suite Buffer Overflows in Backup Agent, Job Engine and Discovery Services Let Remote Users Execute Arbitrary Code
- SECTRACK ID: 1017006: CA Business Protection Suite Buffer Overflows in Backup Agent, Job Engine and Discovery Services Let Remote Users Execute Arbitrary Code
- US-CERT VU#361792: Computer Associates Discovery Service buffer overflow
- US-CERT VU#860048: Computer Associates BrightStor ARCserv and Protection Suite products RPC buffer overflow vulnerabilities
- VUPEN/ADV-2006-3930: CA BrightStor ARCserve Backup Multiple Remote Code Execution Vulnerabilities
Platforms Affected:
- CA BrightStor ARCserve Backup 11.1
- CA BrightStor ARCserve Backup 11.5
- CA BrightStor ARCserve Backup 11.5 SP1
- CA BrightStor ARCserve Backup 9.01
- CA BrightStor ARCserve Backup for Windows 11
- CA BrightStor Enterprise Backup 10.5
- CA Business Protection Suite 2.0
- CA Server Protection Suite 2
Reported:
Oct 05, 2006
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