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iSCSI Target iSNS Stack Buffer Overflow

iSCSI Target iSNS Stack Buffer Overflow
Posted Jul 3, 2010
Authored by TELUS Security Labs | Site telussecuritylabs.com

A stack buffer overflow vulnerability exist in iscsitarget, an open implementation of iSCSI Enterprise Target. The vulnerability is caused by insufficient boundary checking while processing iSNS messages. A remote attacker can leverage this vulnerability to inject and execute arbitrary code on a vulnerable system.

tags | advisory, remote, overflow, arbitrary
advisories | CVE-2010-2221
SHA-256 | 6fcd69274daa390cb09aab03d6ff81c49f17f973d50117e842e0491b410fefbd

iSCSI Target iSNS Stack Buffer Overflow

Change Mirror Download
iSCSI target Multiple Implementations iSNS Stack Buffer Overflow

TSL ID: FSC20100701-01

1. Affected Software

iSCSI Enterprise Project iscsitarget 1.4.20.1 and prior
SCST project iscsi-scst 1.0.1.1 and prior
tgt project tgt 1.0.5 and prior

References:

http://iscsitarget.sourceforge.net/
http://scst.sourceforge.net/
http://stgt.sourceforge.net/

2. Vulnerability Summary

A stack buffer overflow vulnerability exist in iscsitarget, an open implementation of iSCSI Enterprise Target. The vulnerability is caused by insufficient boundary checking while processing iSNS messages. A remote attacker can leverage this vulnerability to inject and execute arbitrary code on a vulnerable system.

3. Vulnerability Analysis

Successful exploitation of this vulnerability can result in a complete compromise of the target system. In an unsuccessful attack attempt, the vulnerable system may abnormally terminate.

4. Vulnerability Detection

TELUS Security Labs has confirmed the vulnerability in:

iSCSI Enterprise Project iscsitarget 1.4.20.1 and prior
SCST project iscsi-scst 1.0.1.1 and prior
tgt project tgt 1.0.5 and prior

5. Workaround

Disable or uninstall the affected module.

6. Vendor Response

Patches have been made available to eliminate this vulnerability:

http://sourceforge.net/mailarchive/forum.php?thread_name=E2BB8074E5500C42984D980D4BD78EF904075006%40MFG-NYC-EXCH2.mfg.prv&forum_name=iscsitarget-devel


7. Disclosure Timeline

2010-05-18 Reported to vendor
2010-05-18 Initial vendor response
2010-07-01 Coordinated public disclosure

8. Credits

Vulnerability Research Team, TELUS Security Labs

9. References

CVE: CVE-2010-2221
Vendor: Not available

10. About TELUS Security Labs

TELUS Security Labs, formerly Assurent Secure Technologies is the leading provider of security research. Our research
services include:

* Vulnerability Research
* Malware Research
* Signature Development
* Shellcode Exploit Development
* Application Protocols
* Product Security Testing
* Security Content Development (parsers, reports, alerts)

TELUS Security Labs provides a specialized portfolio of services to assist security product vendors with newly discovered commercial product vulnerabilities and malware attacks. Many of our services are provided on a subscription basis to reduce research costs for our customers. Over 50 of the world's leading security product vendors rely on TELUS Security Labs research.

http://www.telussecuritylabs.com/
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