CA BrightStor ARCserve 'Mediasvr.exe' and 'caloggerd.exe' Can Be Crashed By Remote Users
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SecurityTracker Alert ID: 1018076 |
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SecurityTracker URL: http://securitytracker.com/id/1018076
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CVE Reference:
CVE-2007-2772
(Links to External Site)
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Updated: May 12 2008
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Original Entry Date: May 17 2007
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Impact:
Denial of service via network
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Vendor Confirmed: Yes Exploit Included: Yes
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Description:
Two vulnerabilities were reported in BrightStor ARCserve. A remote user can cause denial of service conditions.
A remote user can send specially crafted data to cause 'Mediasvr.exe' and 'caloggerd.exe' to crash.
Shirkdog Security reported these vulnerabilities.
A demonstration exploit is available at:
http://www.milw0rm.com/exploits/3939
http://www.milw0rm.com/exploits/3940
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Impact:
A remote user can cause the target service to crash.
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Solution:
No solution was available at the time of this entry.
The vendor is working on a fix.
The vendor has provided the following workaround instructions [quoted]:
To mitigate the Mediasvr.exe vulnerability, CA recommends that
BrightStor ARCserve Backup users implement the following temporary
workaround:
1. Rename the "mediasvr.exe" file to a non-functional file
name, such as "mediasvc.exe.disable".
2. Then restart the CA BrightStor Tape Engine service.
This will disable the command line functionality in the product
(i.e. command line utilities such as ca_backup, ca_restore,
ca_merge, ca_qmgr, ca_scan, etc will not work).
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Vendor URL: www.ca.com/ (Links to External Site)
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Cause:
Input validation error
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Underlying OS: Windows (Any)
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Message History:
None.
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Source Message Contents
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Subject: CA BrightStor ARCserve Backup Mediasvr.exe and caloggerd.exe Vulnerabilities
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Title: CA BrightStor ARCserve Backup Mediasvr.exe and
caloggerd.exe Vulnerabilities
Notice Date: 2007-05-16
CA is aware that two functional exploit code samples were
publicized on May 16, 2007. These two denial of service exploits
are associated with vulnerabilities in CA BrightStor ARCserve
Backup Mediasvr.exe and caloggerd.exe.
We have verified that vulnerabilities do exist, and we are now
working on a patch to address the issues. We have given these
vulnerabilities a Medium risk rating.
To mitigate the Mediasvr.exe vulnerability, CA recommends that
BrightStor ARCserve Backup users implement the following temporary
workaround:
1. Rename the "mediasvr.exe" file to a non-functional file
name, such as "mediasvc.exe.disable".
2. Then restart the CA BrightStor Tape Engine service.
This will disable the command line functionality in the product
(i.e. command line utilities such as ca_backup, ca_restore,
ca_merge, ca_qmgr, ca_scan, etc will not work).
After we have completed our analysis of these issues, we will post
an update and patches on the CA SupportConnect website. If
additional information is required, please contact CA Technical
Support at http://supportconnect.ca.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 at
http://www.ca.com/us/securityadvisor/vulninfo/submit.aspx
Regards,
Ken Williams ; 0xE2941985
Director, CA Vulnerability Research
CA, 1 CA Plaza, Islandia, NY 11749
Contact http://www.ca.com/us/contact/
Legal Notice http://www.ca.com/us/legal/
Privacy Policy http://www.ca.com/us/privacy/
Copyright (c) 2007 CA. All rights reserved.
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