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Debian DSA-163-1 : mhonarc - XSS

high Nessus Plugin ID 15000

Synopsis

The remote Debian host is missing a security-related update.

Description

Jason Molenda and Hiromitsu Takagi foundways to exploit cross site scripting bugs in mhonarc, a mail to HTML converter. When processing maliciously crafted mails of type text/html mhonarc does not deactivate all scripting parts properly. This is fixed in upstream version 2.5.3.

If you are worried about security, it is recommended that you disable support of text/html messages in your mail archives. There is no guarantee that the mhtxthtml.pl library is robust enough to eliminate all possible exploits that can occur with HTML data.

To exclude HTML data, you can use the MIMEEXCS resource. For example :

 <MIMEExcs> text/html text/x-html </MIMEExcs>

The type 'text/x-html' is probably not used any more, but is good to include it, just-in-case.

If you are concerned that this could block out the entire contents of some messages, then you could do the following instead :

 <MIMEFilters> text/html; m2h_text_plain::filter; mhtxtplain.pl text/x-html; m2h_text_plain::filter; mhtxtplain.pl </MIMEFilters>

This treats the HTML as text/plain.

The above problems have been fixed in version 2.5.2-1.1 for the current stable distribution (woody), in version 2.4.4-1.1 for the old stable distribution (potato) and in version 2.5.11-1 for the unstable distribution (sid).

Solution

Upgrade the mhonarc packages.

See Also

http://online.securityfocus.com/archive/1/268455

http://www.debian.org/security/2002/dsa-163

Plugin Details

Severity: High

ID: 15000

File Name: debian_DSA-163.nasl

Version: 1.21

Type: local

Agent: unix

Published: 9/29/2004

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:mhonarc, cpe:/o:debian:debian_linux:2.2, cpe:/o:debian:debian_linux:3.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 9/9/2002

Vulnerability Publication Date: 4/19/2002

Reference Information

CVE: CVE-2002-0738

BID: 4546

DSA: 163