GNU ed open_sbuf() symlink
| gnued-opensbuf-symlink (30374) |  Medium Risk |
Description:
GNU ed could allow a local attacker to launch a symlink attack. The open_sbuf() function creates temporary files insecurely. A local attacker could exploit this vulnerability to create or overwrite arbitrary files on the system with the privileges of the victim.
Platforms Affected:
- GNU, ed 0.2
Remedy:
Upgrade to the latest version of GNU ed (0.3 or later), available from the freshmeat.net Web site. See References.
Consequences:
File Manipulation
References:
- freshmeat.net, Project details for GNU ed at http://freshmeat.net/projects/ed/?branch_id=17855&release_id=240890.
- GNU Project Web site, ed at http://www.gnu.org/software/ed/ed.html.
- BID-22129: GNU Ed Insecure Temporary File Creation Vulnerability
- CVE-2006-6939: GNU ed before 0.3 allows local users to overwrite arbitrary files via a symlink attack on temporary files, possibly in the open_sbuf function.
- SA23832: GNU ed Insecure Temporary File Creation
- VUPEN/ADV-2006-4573: GNU ed open_sbuf() Function Insecure Temporary File Creation Vulnerability
Reported:
Nov 17, 2006
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