Executive Summary

Summary
Title New lftp packages fix file overwrite vulnerability
Informations
Name DSA-2085 First vendor Publication 2010-08-03
Vendor Debian Last vendor Modification 2010-08-03
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

It was discovered that in lftp, a command-line HTTP/FTP client, there is no proper validation of the filename provided by the server through the Content-Disposition header; attackers can use this flaw by suggesting a filename they wish to overwrite on the client machine, and then possibly execute arbitrary code (for instance if the attacker elects to write a dotfile in a home directory).

For the stable distribution (lenny), this problem has been fixed in version 3.7.3-1+lenny1.

For the testing distribution (squeeze), this problem has been fixed in version 4.0.6-1.

For the unstable distribution (sid), this problem has been fixed in version 4.0.6-1.

We recommend that you upgrade your lftp packages.

Original Source

Url : http://www.debian.org/security/2010/dsa-2085

CWE : Common Weakness Enumeration

idName
CWE-20Improper Input Validation

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:22074
 
Oval ID: oval:org.mitre.oval:def:22074
Title: RHSA-2010:0585: lftp security update (Moderate)
Description: The get1 command, as used by lftpget, in LFTP before 4.0.6 does not properly validate a server-provided filename before determining the destination filename of a download, which allows remote servers to create or overwrite arbitrary files via a Content-Disposition header that suggests a crafted filename, and possibly execute arbitrary code as a consequence of writing to a dotfile in a home directory.
Family: unix Class: patch
Reference(s): RHSA-2010:0585-01
CESA-2010:0585
CVE-2010-2251
Version: 4
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): lftp
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13484
 
Oval ID: oval:org.mitre.oval:def:13484
Title: USN-984-1 -- lftp vulnerability
Description: It was discovered that LFTP incorrectly filtered filenames suggested by Content-Disposition headers. If a user or automated system were tricked into downloading a file from a malicious site, a remote attacker could create the file with an arbitrary name, such as a dotfile, and possibly run arbitrary code.
Family: unix Class: patch
Reference(s): USN-984-1
CVE-2010-2251
Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 10.04
Ubuntu 9.04
Ubuntu 9.10
Product(s): lftp
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:12796
 
Oval ID: oval:org.mitre.oval:def:12796
Title: DSA-2085-1 lftp -- missing input validation
Description: It was discovered that in lftp, a command-line HTTP/FTP client, there is no proper validation of the filename provided by the server through the Content-Disposition header; attackers can use this flaw by suggesting a filename they wish to overwrite on the client machine, and then possibly execute arbitrary code. For the stable distribution, this problem has been fixed in version 3.7.3-1+lenny1. For the testing distribution, this problem has been fixed in version 4.0.6-1. For the unstable distribution, this problem has been fixed in version 4.0.6-1. We recommend that you upgrade your lftp packages.
Family: unix Class: patch
Reference(s): DSA-2085-1
CVE-2010-2251
Version: 5
Platform(s): Debian GNU/Linux 5.0
Product(s): lftp
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22803
 
Oval ID: oval:org.mitre.oval:def:22803
Title: ELSA-2010:0585: lftp security update (Moderate)
Description: The get1 command, as used by lftpget, in LFTP before 4.0.6 does not properly validate a server-provided filename before determining the destination filename of a download, which allows remote servers to create or overwrite arbitrary files via a Content-Disposition header that suggests a crafted filename, and possibly execute arbitrary code as a consequence of writing to a dotfile in a home directory.
Family: unix Class: patch
Reference(s): ELSA-2010:0585-01
CVE-2010-2251
Version: 6
Platform(s): Oracle Linux 5
Product(s): lftp
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application142

OpenVAS Exploits

DateDescription
2011-08-09Name : CentOS Update for lftp CESA-2010:0585 centos5 i386
File : nvt/gb_CESA-2010_0585_lftp_centos5_i386.nasl
2010-10-10Name : FreeBSD Ports: lftp
File : nvt/freebsd_lftp0.nasl
2010-09-10Name : Ubuntu Update for lftp vulnerability USN-984-1
File : nvt/gb_ubuntu_USN_984_1.nasl
2010-08-21Name : Debian Security Advisory DSA 2085-1 (lftp)
File : nvt/deb_2085_1.nasl
2010-08-06Name : RedHat Update for lftp RHSA-2010:0585-01
File : nvt/gb_RHSA-2010_0585-01_lftp.nasl
2010-07-12Name : Mandriva Update for lftp MDVSA-2010:128 (lftp)
File : nvt/gb_mandriva_MDVSA_2010_128.nasl
2010-07-02Name : Fedora Update for lftp FEDORA-2010-9819
File : nvt/gb_fedora_2010_9819_lftp_fc12.nasl
2010-04-29Name : Mandriva Update for epiphany MDVA-2010:128 (epiphany)
File : nvt/gb_mandriva_MDVA_2010_128.nasl
2010-04-29Name : Mandriva Update for epiphany MDVA-2010:128-1 (epiphany)
File : nvt/gb_mandriva_MDVA_2010_128_1.nasl

Open Source Vulnerability Database (OSVDB)

idDescription
64713LFTP lftpget get1 Command Content-Disposition Header Suggested Filename Arbit...

Nessus® Vulnerability Scanner

DateDescription
2013-07-12Name : The remote Oracle Linux host is missing a security update.
File : oraclelinux_ELSA-2010-0585.nasl - Type : ACT_GATHER_INFO
2012-08-01Name : The remote Scientific Linux host is missing a security update.
File : sl_20100802_lftp_for_SL_5.nasl - Type : ACT_GATHER_INFO
2010-09-08Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-984-1.nasl - Type : ACT_GATHER_INFO
2010-09-04Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_29b7e3f4b6a911dfae63f255a795cb21.nasl - Type : ACT_GATHER_INFO
2010-08-05Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2085.nasl - Type : ACT_GATHER_INFO
2010-08-03Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2010-0585.nasl - Type : ACT_GATHER_INFO
2010-08-03Name : The remote CentOS host is missing a security update.
File : centos_RHSA-2010-0585.nasl - Type : ACT_GATHER_INFO
2010-07-30Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2010-128.nasl - Type : ACT_GATHER_INFO
2010-07-01Name : The remote Fedora host is missing a security update.
File : fedora_2010-9819.nasl - Type : ACT_GATHER_INFO
2010-06-23Name : The remote openSUSE host is missing a security update.
File : suse_11_2_lftp-100610.nasl - Type : ACT_GATHER_INFO
2010-06-23Name : The remote openSUSE host is missing a security update.
File : suse_11_1_lftp-100610.nasl - Type : ACT_GATHER_INFO
2010-06-23Name : The remote openSUSE host is missing a security update.
File : suse_11_0_lftp-100610.nasl - Type : ACT_GATHER_INFO

Alert History

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DateInformations
2014-02-17 11:29:34
  • Multiple Updates