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RHEL 2.1 : wget (RHSA-2002:256)

medium Nessus Plugin ID 12334

Synopsis

The remote Red Hat host is missing a security update.

Description

The wget packages shipped with Red Hat Linux Advanced Server 2.1 contain a security bug which, under certain circumstances, can cause local files to be written outside the download directory.

[Updated 09 Jan 2003] Added fixed packages for the Itanium (IA64) architecture.

[Updated 06 Feb 2003] Added fixed packages for Advanced Workstation 2.1

Versions of wget prior to 1.8.2-4 contain a bug that permits a malicious FTP server to create or overwrite files anywhere on the local file system.

FTP clients must check to see if an FTP server's response to the NLST command includes any directory information along with the list of filenames required by the FTP protocol (RFC 959, section 4.1.3).

If the FTP client fails to do so, a malicious FTP server can send filenames beginning with '/' or containing '/../' which can be used to direct a vulnerable FTP client to write files (such as .forward, .rhosts, .shost, etc.) that can then be used for later attacks against the client machine.

All users of wget should upgrade to the errata packages which are not vulnerable to this issue.

Thanks to Steven M. Christey for his work in discovering this issue in current FTP clients and for providing a patched FTP server to verify the new packages.

Solution

Update the affected wget package.

See Also

https://access.redhat.com/security/cve/cve-2002-1344

https://marc.info/?l=bugtraq&m=87602746719482

https://access.redhat.com/errata/RHSA-2002:256

Plugin Details

Severity: Medium

ID: 12334

File Name: redhat-RHSA-2002-256.nasl

Version: 1.27

Type: local

Agent: unix

Published: 7/6/2004

Updated: 1/14/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:wget, cpe:/o:redhat:enterprise_linux:2.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 2/5/2003

Vulnerability Publication Date: 12/18/2002

Reference Information

CVE: CVE-2002-1344

RHSA: 2002:256