Ubuntu 8.04 LTS / 8.10 / 9.04 : mono vulnerabilities (USN-826-1)

Ubuntu Security Notice (C) 2009-2014 Canonical, Inc. / NASL script (C) 2009-2014 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

It was discovered that the XML HMAC signature system did not correctly
check certain lengths. If an attacker sent a truncated HMAC, it could
bypass authentication, leading to potential privilege escalation.
(CVE-2009-0217)

It was discovered that Mono did not properly escape certain attributes
in the ASP.net class libraries which could result in browsers becoming
vulnerable to cross-site scripting attacks when processing the output.
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 (such as passwords), within the same domain. This
issue only affected Ubuntu 8.04 LTS. (CVE-2008-3422)

It was discovered that Mono did not properly filter CRLF injections in
the query string. If a user were tricked into viewing server output
during a crafted server request, a remote attacker could exploit this
to modify the contents, steal confidential data (such as passwords),
or perform cross-site request forgeries. This issue only affected
Ubuntu 8.04 LTS. (CVE-2008-3906).

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N)
CVSS Temporal Score : 4.3
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 40794 ()

Bugtraq ID: 35671

CVE ID: CVE-2008-3422
CVE-2008-3906
CVE-2009-0217