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Category:   Application (Security)  >   Kerberos Vendors:   MIT
Kerberos FTP Server Lets Remote Authenticated Users Read and Write Files With Elevated Privileges
SecurityTracker Alert ID:  1025744
SecurityTracker URL:  http://securitytracker.com/id/1025744
CVE Reference:   CVE-2011-1526   (Links to External Site)
Date:  Jul 5 2011
Impact:   Disclosure of system information, Disclosure of user information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): krb5-appl-1.0.1 and prior versions
Description:   A vulnerability was reported in Kerberos in the FTP daemon. A remote authenticated user can read and write files on the target system with elevated privileges.

A remote authenticated user can read and write files on the target system with the privileges of the group ID that started the FTP daemon. This is often root or wheel group privileges.

Tim Zingelman reported this vulnerability.

Impact:   A remote authenticated user can read and write files on the target system with the privileges of the group ID that started the FTP daemon.
Solution:   The vendor has issued a patch, available at:

http://web.mit.edu/kerberos/advisories/2011-005-patch.txt

The patch will be included in an upcoming release of krb5-appl.

The vendor's advisory is available at:

http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-005.txt

Vendor URL:  web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-005.txt (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 5 2011 (Red Hat Issues Fix) Kerberos FTP Server Lets Remote Authenticated Users Read and Write Files With Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 6.
Feb 21 2012 (Red Hat Issues Fix) Kerberos FTP Server Lets Remote Authenticated Users Read and Write Files With Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 5.



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