GNU nano Race Condition Lets Local Users Gain Elevated Privileges
|
|
SecurityTracker Alert ID: 1023891 |
|
SecurityTracker URL: http://securitytracker.com/id/1023891
|
|
CVE Reference:
CVE-2010-1160, CVE-2010-1161
(Links to External Site)
|
Date: Apr 16 2010
|
Impact:
Modification of system information, Modification of user information, User access via local system
|
Fix Available: Yes Vendor Confirmed: Yes
|
Version(s): prior to 2.2.4
|
Description:
Two vulnerabilities were reported in GNU nano. A local user can obtain elevated privileges on the target system.
The software does not check to determine if an edited file owned by a different user has changed during editing [CVE-2010-1160]. A local user can replace the file being edited by a different target user with a symbolic link (symlink) to cause the symlinked file to be written with the privileges of the target user.
The software does not properly create backup files when the root user is editing a file owned by another user [CVE-2010-1161]. A local user can exploit a race condition to take ownership of arbitrary files.
Dan Rosenberg reported these vulnerabilities.
|
Impact:
A local user can obtain elevated privileges on the target system.
|
Solution:
The vendor has issued a fix (2.2.4).
|
Vendor URL: www.nano-editor.org/ (Links to External Site)
|
Cause:
Access control error, State error
|
Underlying OS:
Linux (Any)
|
|
Message History:
None.
|
Source Message Contents
|
Date: Fri, 16 Apr 2010 04:34:37 +0000
Subject: GNU nano
|
http://www.openwall.com/lists/oss-security/2010/04/14/6
CVE-2010-1160
CVE-2010-1161
|
|
