GNU screen before 4.5.1 allows local users to modify arbitrary files and consequently gain root privileges by leveraging improper checking of logfile permissions.
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Link | Tags |
---|---|
http://git.savannah.gnu.org/cgit/screen.git/tree/src/ChangeLog?h=v.4.5.1 | third party advisory release notes |
http://savannah.gnu.org/bugs/?50142 | third party advisory |
http://www.openwall.com/lists/oss-security/2017/01/29/3 | mailing list exploit third party advisory |
http://git.savannah.gnu.org/cgit/screen.git/patch/?id=1c6d2817926d30c9a7a97d99af7ac5de4a5845b8 | third party advisory patch |
http://www.securityfocus.com/bid/95873 | vdb entry third party advisory |
https://lists.gnu.org/archive/html/screen-devel/2017-01/msg00025.html | mailing list exploit third party advisory |