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Ubuntu Security Notice USN-1182-1

Ubuntu Security Notice USN-1182-1
Posted Aug 3, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1182-1 - Yoshihiro Ishikawa discovered that the Samba Web Administration Tool (SWAT) was vulnerable to cross-site request forgeries (CSRF). If a Samba administrator were tricked into clicking a link on a specially crafted web page, an attacker could trigger commands that could modify the Samba configuration. Nobuhiro Tsuji discovered that the Samba Web Administration Tool (SWAT) did not properly sanitize its input when processing password change requests, resulting in cross-site scripting (XSS) vulnerabilities. With cross-site scripting vulnerabilities, if a user were tricked into viewing server output during a crafted server request, a remote attacker could exploit this to modify the contents, or steal confidential data, within the same domain.

tags | advisory, remote, web, vulnerability, xss
systems | linux, ubuntu
advisories | CVE-2011-2522, CVE-2011-2694
SHA-256 | b5365411c65e521113377455a95fb0f5eb3b5f1438e32a7b5c8c7fb63e1875c2

Ubuntu Security Notice USN-1182-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-1182-1
August 02, 2011

samba vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

An attacker could use a malicious URL to reconfigure Samba or steal
information.

Software Description:
- samba: SMB/CIFS file, print, and login server for Unix

Details:

Yoshihiro Ishikawa discovered that the Samba Web Administration Tool (SWAT)
was vulnerable to cross-site request forgeries (CSRF). If a Samba
administrator were tricked into clicking a link on a specially crafted web
page, an attacker could trigger commands that could modify the Samba
configuration. (CVE-2011-2522)

Nobuhiro Tsuji discovered that the Samba Web Administration Tool (SWAT) did
not properly sanitize its input when processing password change requests,
resulting in cross-site scripting (XSS) vulnerabilities. With cross-site
scripting vulnerabilities, if a user were tricked into viewing server
output during a crafted server request, a remote attacker could exploit
this to modify the contents, or steal confidential data, within the same
domain. (CVE-2011-2694)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.04:
swat 2:3.5.8~dfsg-1ubuntu2.3

Ubuntu 10.10:
swat 2:3.5.4~dfsg-1ubuntu8.5

Ubuntu 10.04 LTS:
swat 2:3.4.7~dfsg-1ubuntu3.7

Ubuntu 8.04 LTS:
swat 3.0.28a-1ubuntu4.15

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1182-1
CVE-2011-2522, CVE-2011-2694

Package Information:
https://launchpad.net/ubuntu/+source/samba/2:3.5.8~dfsg-1ubuntu2.3
https://launchpad.net/ubuntu/+source/samba/2:3.5.4~dfsg-1ubuntu8.5
https://launchpad.net/ubuntu/+source/samba/2:3.4.7~dfsg-1ubuntu3.7
https://launchpad.net/ubuntu/+source/samba/3.0.28a-1ubuntu4.15


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