Executive Summary
| Summary | |
|---|---|
| Title | samba remote file append/creation problem |
| Informations | |||
|---|---|---|---|
| Name | DSA-065 | First vendor Publication | 2001-06-23 |
| Vendor | Debian | Last vendor Modification | 2001-06-23 |
| Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 10 | Attack Range | Network |
| Cvss Impact Score | 10 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Michal Zalewski discovered that samba does not properly validate NetBIOS names from remote machines. By itself that is not a problem, except if Samba is configure to write log-files to a file that includes the NetBIOS name of the remote side by using the `%m' macro in the `log file' command. In that case an attacker could use a NetBIOS name like '../tmp/evil'. If the log-file was set to "/var/log/samba/%s" samba would them write to /var/tmp/evil. Since the NetBIOS name is limited to 15 characters and the `log file' command could have an extension to the filename the results of this are limited. However if the attacker is also able to create symbolic links on the samba server he could trick samba into appending any data he wants to all files on the filesystem which samba can write to. The Debian GNU/Linux packaged version of samba has a safe configuration and is not vulnerable. As temporary workaround for systems that are vulnerable change all occurrences of the `%m' macro in smb.conf to `%l' and restart samba. This has been fixed in version 2.0.7-3.4, and we recommend that up upgrade your samba package immediately. wget url will fetch the file for you dpkg -i file.deb will install the referenced file. Debian GNU/Linux 2.2 alias potato |
Original Source
| Url : http://www.debian.org/security/2001/dsa-065 |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 2 | |
| Application | 6 |
OpenVAS Exploits
| Date | Description |
|---|---|
| 2008-01-17 | Name : Debian Security Advisory DSA 065-1 (samba) File : nvt/deb_065_1.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 656 | Samba NETBIOS Name Traversal Arbitrary Remote File Creation This host is running the Samba software. Samba is a free application that provides file and print services to SMB/CIFS clients. This software is vulnerable to an arbitrary file creation attack. A potential intruder can use this to overwrite files and create a denial of service condition or in conjunction with other vulnerabilities to gain access to this host. |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2004-09-29 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-065.nasl - Type : ACT_GATHER_INFO |
| 2004-07-31 | Name : The remote Mandrake Linux host is missing one or more security updates. File : mandrake_MDKSA-2001-062.nasl - Type : ACT_GATHER_INFO |
| 2001-10-17 | Name : Arbitrary files may be overwritten on the remote server. File : samba_arbitrary_file_creation.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:25:26 |
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