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.
*CVSS:
| Base Score: | 2.6 |
| Access Vector: | Local |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 2.3 |
| Exploitability: | High |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
File Manipulation
Remedy:
Upgrade to the latest version of GNU ed (0.3 or later), available from the freshmeat.net Web site. See References.
References:
- freshmeat.net: Project details for GNU ed.
- GNU Project Web site: ed.
- 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
Platforms Affected:
- GNU ed 0.2
Reported:
Nov 17, 2006
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.