wget lock race condition
| wget-lock-race-condition (16167) |  Medium Risk |
Description:
wget is vulnerable to a race condition. wget checks for an existing filename prior to saving a downloaded file, but fails to lock the file. A local attacker could exploit this vulnerability to launch a symlink attack and overwrite files on the system.
Platforms Affected:
- Canonical, Ubuntu 4.10
- Canonical, Ubuntu 5.04
- GNU, wget 1.9
- GNU, wget 1.9.1
- MandrakeSoft, Mandrake Linux 10.1 X86_64
- MandrakeSoft, Mandrake Linux 10.1
- MandrakeSoft, Mandrake Linux LE2005 X86_64
- MandrakeSoft, Mandrake Linux LE2005
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Multi Network Firewall 2.0
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 ES
- RedHat, Linux Advanced Workstation 2.1 Itanium
- Turbolinux, Turbolinux 10 Desktop
- Turbolinux, Turbolinux 10 F...
- Turbolinux, Turbolinux 10 Server
- Turbolinux, Turbolinux 7 Server
- Turbolinux, Turbolinux 7 Workstation
- Turbolinux, Turbolinux 8 Server
- Turbolinux, Turbolinux 8 Workstation
- Turbolinux, Turbolinux Home
- Turbolinux, Turbolinux Multimedia
- Turbolinux, Turbolinux Personal
- Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
- Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed
Remedy:
For Red Hat Linux:
Refer to RHSA-2005:771-10 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux:
Refer to USN-145-1 and USN-145-2 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
File Manipulation
References:
- BugTraq Mailing List, Sun May 16 2004 - 18:28:47 CDT , Wget race condition vulnerability at http://archives.neohapsis.com/archives/bugtraq/2004-05/0154.html.
- GNU Project Web site, GNU wget at http://www.gnu.org/software/wget/wget.html.
- BID-10361: WGet Insecure File Creation Race Condition Vulnerability
- CVE-2004-2014: Wget 1.9 and 1.9.1 allows local users to overwrite arbitrary files via a symlink attack on the name of the file being downloaded.
- MDKSA-2005:204: Updated wget packages fix vulnerability
- RHSA-2005-771: wget security update
Reported:
May 16, 2004
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