RHEL 5 : lftp (RHSA-2010:0585)

high Nessus Plugin ID 48232

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Synopsis

The remote Red Hat host is missing a security update.

Description

An updated lftp package that fixes one security issue is now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

LFTP is a sophisticated file transfer program for the FTP and HTTP protocols. Like Bash, it has job control and uses the Readline library for input. It has bookmarks, built-in mirroring, and can transfer several files in parallel. It is designed with reliability in mind.

It was discovered that lftp trusted the file name provided in the Content-Disposition HTTP header. A malicious HTTP server could use this flaw to write or overwrite files in the current working directory of a victim running lftp, by sending a different file from what the victim requested. (CVE-2010-2251)

To correct this flaw, the following changes were made to lftp: the 'xfer:clobber' option now defaults to 'no', causing lftp to not overwrite existing files, and a new option, 'xfer:auto-rename', which defaults to 'no', has been introduced to control whether lftp should use server-suggested file names. Refer to the 'Settings' section of the lftp(1) manual page for additional details on changing lftp settings.

All lftp users should upgrade to this updated package, which contains a backported patch to correct this issue.

Solution

Update the affected lftp package.

See Also

https://access.redhat.com/security/cve/cve-2010-2251

https://access.redhat.com/errata/RHSA-2010:0585

Plugin Details

Severity: High

ID: 48232

File Name: redhat-RHSA-2010-0585.nasl

Version: 1.19

Type: local

Agent: unix

Published: 8/3/2010

Updated: 1/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:lftp, cpe:/o:redhat:enterprise_linux:5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/2/2010

Vulnerability Publication Date: 7/6/2010

Reference Information

CVE: CVE-2010-2251

BID: 43728

RHSA: 2010:0585