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TITLE:
Globus Toolkit GridFTP Server Invalid User Authentication Security
Bypass

SECUNIA ADVISORY ID:
SA49661

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49661/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49661

RELEASE DATE:
2012-06-21

DISCUSS ADVISORY:
http://secunia.com/advisories/49661/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/49661/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=49661

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A security issue has been reported in Globus Toolkit, which can be
exploited by malicious users to bypass certain security
restrictions.

The security issue is caused due to an error in the GridFTP server
during the authentication phase and can be exploited to login as the
last user in the "/etc/passwd" file.

Successful exploitation requires a gridmap file to be improperly
configured with a valid user DN mapped to an invalid user account.

The security issue is reported in the following versions:
* Globus Toolkit releases 5.2.0 and 5.2.1.
* Globus Toolkit pre-5.2.0 for *threaded* flavor servers only.

SOLUTION:
Install updated GridFTP package (please see the vendor's advisory for
details).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Doug Strain and Neha Sharma.

ORIGINAL ADVISORY:
http://lists.globus.org/pipermail/security-announce/2012-May/000019.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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