CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS
Percentile
93.7%
The wget
utility contains directory traversal vulnerabilities that allow a malicious FTP server to overwrite files on the client host.
In a typical file transfer operation, one participant (the client) requests a file while a second participant (the server) provides the requested file. Before processing each request, many server implementations will consult an access control policy to determine whether the client should be permitted to read, write, or create a file at the requested location. If the client is able to craft a request that violates the server’s access control policy, then the server contains a vulnerability. Since most vulnerabilities of this type involve escaping a restricted set of directories, they are commonly known as “directory traversal” vulnerabilities.
Directory traversal vulnerabilities are most often reported in server implementations, but recent research into the behavior of FTP clients has revealed vulnerabilities in several file transfer applications, including the wget
utility. To exploit these vulnerabilities, an attacker must convince the victim user to access a specific FTP server containing files with crafted filenames. When an affected version of wget
attempts to download one of these files, the crafted filename causes the utility to write the downloaded files to the location specified by the filename, not by the victim user. In some cases, the attacker must use a modified FTP server to allow the crafted filenames to be passed to the client.
For more detailed information regarding this research, please read “Directory Traversal Vulnerabilities in FTP Clients”, written by Steve Christey.
This vulnerability allows an attacker to mislead wget
users, convincing them to unintentionally create or overwrite files on the client’s filesystem.
Apply a patch from your vendor
For vendor-specific information regarding vulnerability status and patch availability, please consult the Systems Affected section of this document
210148
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Notified: December 05, 2002 Updated: December 13, 2002
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Conectiva has published Conectiva Linux Security Announcement CLA-2002:552 to address this vulnerability. For more information, please see
http://distro.conectiva.com/atualizacoes/?id=a&anuncio=000552
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23210148 Feedback>).
Notified: December 05, 2002 Updated: December 13, 2002
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Debian has published Debian Security Advisory DSA-209-1 to address this vulnerability. For more information, please see
http://www.debian.org/security/2002/dsa-209
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23210148 Feedback>).
Notified: December 20, 2002 Updated: December 31, 2002
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Gentoo Linux has published Security Announcement 200212-7 to address this vulnerability. For more information, please see
http://forums.gentoo.org/viewtopic.php?t=27117
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23210148 Feedback>).
Notified: December 05, 2002 Updated: December 12, 2002
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
MandrakeSoft has published MandrakeSoft Security Advisory MDKSA-2002:086 to address this vulnerability. For more information, please see
http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2002:086
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23210148 Feedback>).
Notified: December 05, 2002 Updated: December 10, 2002
Affected
Red Hat distributes wget with Red Hat Linux which is vulnerable to these issues. Updated versions of wget are available at the URLs below. Users of the Red Hat Network can update their systems using the ‘up2date’ tool.
Red Hat Linux:
http://rhn.redhat.com/errata/RHSA-2002-229.html
Red Hat Linux Advanced Server:
http://rhn.redhat.com/errata/RHSA-2002-256.html
The vendor has not provided us with any further information regarding this vulnerability.
The CERT/CC has no additional comments at this time.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23210148 Feedback>).
Notified: December 19, 2002 Updated: December 31, 2002
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Trustix Secure Linux has published Security Advisory #2002-0089 to address this vulnerability. For more information, please see
http://www.trustix.net/errata/misc/2002/TSL-2002-0089-wget.asc.txt
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23210148 Feedback>).
Group | Score | Vector |
---|---|---|
Base | N/A | N/A |
Temporal | N/A | N/A |
Environmental | N/A |
<http://online.securityfocus.com/archive/1/302956>
The CERT/CC thanks Steve Christey for his discovery and analysis of this vulnerability.
This document was written by Jeffrey P. Lanza.
CVE IDs: | CVE-2002-1344 |
---|---|
Severity Metric: | 0.68 Date Public: |