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CA ARCserve Backup Tape Engine Denial of Service
Assurent ID: FSC20081009-11
1. Affected Software
CA ARCserve Backup 11.1 Windows
CA ARCserve Backup 11.5 Windows
CA ARCserve Backup 12.0 Windows
Reference: http://www.ca.com/us/data-loss-prevention.aspx
2. Vulnerability Summary
A vulnerability has been discovered in the Tape Engine component of CA
ARCserve Backup. Insufficient input validation when processing remote
procedure call (RPC) requests is the cause of this vulnerability.
3. Vulnerability Analysis
A remote unauthenticated attacker can exploit this vulnerability by sending
a crafted message to the target server on TCP port 6502. A successful attack
could cause a denial of service condition for the Tape Engine and Media
Server services.
4. Vulnerability Detection
Assurent has confirmed the vulnerability in:
CA ARCserve Backup 11.1 Windows
CA ARCserve Backup 11.5 Windows
CA ARCserve Backup 12.0 Windows
5. Workaround
Apply the vendor patch or block communication from untrusted networks to TCP
port 6502.
6. Vendor Response
CA has released a bulletin addressing this vulnerability.
Reference:
https://support.ca.com/irj/portal/anonymous/phpsupcontent?contentID=188143
7. Disclosure Timeline
2008-05-12 Reported to vendor
2008-05-14 Initial vendor response
2008-10-09 Coordinated public disclosure
8. Credits
Vulnerability Research Team, Assurent Secure Technologies, a TELUS company
9. References
CVE: CVE-2008-4398
Vendor: 188143
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