SecurityFocus Linux Newsletter #195
------------------------------------

This Issue is Sponsored By: SecurityFocus 

Want to keep up on the latest security vulnerabilities? Don't have time 
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the
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------------------------------------------------------------------------
I. FRONT AND CENTER
     1. Data Driven Attacks Using HTTP Tunneling
     2. Email Privacy is Lost
II. LINUX VULNERABILITY SUMMARY
     1. PostNuke Install Script Administrator Password Disclosure Vu...
     2. eSeSIX Thintune Thin Client Devices Multiple Vulnerabilities
     3. Mozilla Firefox Refresh Security Property Spoofing Vulnerabi...
     4. Pavuk Remote Digest Authentication Buffer Overflow Vulnerabi...
     5. Subversion 'mod_authz_svn' Access Control Bypass Vulnerabili...
     6. MoinMoin PageEditor Unspecified Privilege Escalation Vulnera...
     7. PostNuke Reviews Module Cross-Site Scripting Vulnerability
     8. Dropbear SSH Server Digital Signature Standard Unspecified A...
     9. Invision Power Board Index.php Query String Cross-Site Scrip...
     10. MoinMoin Unspecified Privilege Escalation Vulnerability
     11. SoX WAV File Buffer Overflow Vulnerability
     12. DansGuardian Hex Encoded File Extension URI Content Filter 
B...
     13. Oracle Database Default Library Directory Privilege 
Escalati...
     14. Mozilla Firefox XML User Interface Language Browser 
Interfac...
     15. Citadel/UX Username Buffer Overflow Vulnerability
III. LINUX FOCUS LIST SUMMARY
     1. SSO on Linux (Thread)
IV. NEW PRODUCTS FOR LINUX PLATFORMS
     1. Cyber-Ark  Inter-Business Vault
     2. EnCase Forensic Edition
     3. KeyGhost SX
     4. SafeKit
     5. Astaro Linux Firewall
     6. CAT Cellular Authentication Token and eAuthentication Servic...
V. NEW TOOLS FOR LINUX PLATFORMS
     1. Firewall Builder 2.0
     2. Lepton's Crack 20031130
     3. popa3d v0.6.4.1
     4. tinysofa enterprise server 2.0-rc1
     5. cenfw 0.2 beta
     6. TinyCA v0.6.4
VII. SPONSOR INFORMATION

I. FRONT AND CENTER
-------------------
1. Data Driven Attacks Using HTTP Tunneling
By Ido Dubrawsky

In this article we will look at a means to bypass the access control
restrictions of a company's router or firewall. This information is
intended to provide help for those who are legitimately testing the
security of a network (whether they are in-house expertise or outside
consultants).

http://www.securityfocus.com/infocus/1793


2. Email Privacy is Lost
By Scott Granneman

As if the common use of "web bugs" inside spam was not enough, 
companies
are using new techniques to watch and track the private emails you 
read,
forward, print, and more. 

http://www.securityfocus.com/columnists/258

II. LINUX VULNERABILITY SUMMARY
-------------------------------
1. PostNuke Install Script Administrator Password Disclosure Vu...
BugTraq ID: 10793
Remote: Yes
Date Published: Jul 24 2004
Relevant URL: http://www.securityfocus.com/bid/10793
Summary:
It is reported that PostNuke may disclose administrator authentication 
credentials to remote attackers.  This issue presents itself because 
the application fails to remove the install script 'install.php' after 
installation.  This can allow an attacker to gain unauthorized access to 
the content management system.  The attacker may then carry out further 
attacks against other users or the computer running the vulnerable 
application.

2. eSeSIX Thintune Thin Client Devices Multiple Vulnerabilities
BugTraq ID: 10794
Remote: Yes
Date Published: Jul 24 2004
Relevant URL: http://www.securityfocus.com/bid/10794
Summary:
Thintune Linux-based devices are reported prone to multiple 
vulnerabilities.  These issues can allow remote attackers to gain complete access 
to a vulnerable device.

The issues include backdoor accounts that can be accessed over the 
network and an information disclosure issue that can disclose user accounts 
and passwords.

Thintune devices with firmware version 2.4.38 and prior are affected by 
these issues.  Reportedly, Thintune devices based on Windows CE are not 
affected.

3. Mozilla Firefox Refresh Security Property Spoofing Vulnerabi...
BugTraq ID: 10796
Remote: Yes
Date Published: Jul 26 2004
Relevant URL: http://www.securityfocus.com/bid/10796
Summary:
Mozilla Firefox may permit malicious Web pages to spoof security 
properties of a trusted site.

An attacker can exploit this issue to spoof the URI and SSL certificate 
of a site trusted by an unsuspecting user.  The attacker can then use 
this spoofing to steal sensitive or private information, facilitating 
phishing attacks

4. Pavuk Remote Digest Authentication Buffer Overflow Vulnerabi...
BugTraq ID: 10797
Remote: Yes
Date Published: Jul 26 2004
Relevant URL: http://www.securityfocus.com/bid/10797
Summary:
It has been reported that Pavuk is affected by a remote digest 
authentication buffer overflow vulnerability. This issue is due to a failure of 
the application to validate string lengths when copying user-supplied 
data into finite buffers in process memory.

Ultimately a remote malicious web site may exploit this issue to 
execute arbitrary code on the affected computer with the privileges of the 
user who started the affected application.

5. Subversion 'mod_authz_svn' Access Control Bypass Vulnerabili...
BugTraq ID: 10800
Remote: Yes
Date Published: Jul 26 2004
Relevant URL: http://www.securityfocus.com/bid/10800
Summary:
Subversion is reported to contain access control bypass vulnerabilities 
in its 'mod_authz_svn' Apache module.

These access control vulnerabilities present themselves when users have 
mixed access to a repository.

These vulnerabilities exist in several server operations, such as COPY 
and DELETE. These operations fail to properly implement the operator 
assigned access controls, allowing users improper access to repositories.

These issues are only present when using the WebDAV access method with 
the Apache 'mod_authz_svn' module, with the 'AuthzSVNAccessFile' 
configuration directive.

The vulnerabilities are present in version 1.0.5 and prior. Versions 
1.0.6 and 1.1.0-rc1 have been released to address these vulnerabilities.

6. MoinMoin PageEditor Unspecified Privilege Escalation Vulnera...
BugTraq ID: 10801
Remote: Yes
Date Published: Jul 26 2004
Relevant URL: http://www.securityfocus.com/bid/10801
Summary:
MoinMoin is reported prone to an unspecified privilege escalation 
vulnerability.  This issue is related to the PageEditor functionality.  
Specifically this vulnerability may arise due to improper implementation of 
access control lists.  A remote attacker may exploit this to gain 
elevated privileges.

Due to a lack of details, further information is not available at the 
moment.  This BID will be updated as more information becomes available.

This issues is identified in MoinMoin version 1.2.2, however, other 
versions may be affected as well.

7. PostNuke Reviews Module Cross-Site Scripting Vulnerability
BugTraq ID: 10802
Remote: Yes
Date Published: Jul 26 2004
Relevant URL: http://www.securityfocus.com/bid/10802
Summary:
PostNuke is reported prone to a cross-site scripting vulnerability.  
This issue affects the 'title' parameter of 'Reviews' script.  
Exploitation of this issue could allow for theft of cookie-based authentication 
credentials. Other attacks are also possible. 

It should be noted, that although this vulnerability has been reported 
to affect PostNuke version 0.726-3 and 0.75-RC3, other versions might 
also be affected.

8. Dropbear SSH Server Digital Signature Standard Unspecified A...
BugTraq ID: 10803
Remote: Yes
Date Published: Jul 26 2004
Relevant URL: http://www.securityfocus.com/bid/10803
Summary:
Reportedly Dropbear SSH is affected by an unspecified digital signal 
standard (DSS) authentication vulnerability; an upgrade is available.

The impact of this issue is currently unknown, although it is 
speculated that this issue could be used to gain unauthorized access to a 
computer running the vulnerable application.  It should be noted that this is 
not confirmed.  This BID will be updated as more information becomes 
available.

9. Invision Power Board Index.php Query String Cross-Site Scrip...
BugTraq ID: 10804
Remote: Yes
Date Published: Jul 26 2004
Relevant URL: http://www.securityfocus.com/bid/10804
Summary:
A vulnerability has been reported to exist in Invision Power Board that 
may allow a remote user to launch cross-site scripting attacks. 

This vulnerability makes it possible for an attacker to construct a 
malicious link containing HTML or script code that may be rendered in a 
user's browser upon visiting that link. This attack would occur in the 
security context of the site. 

Successful exploitation of this attack may allow an attacker to steal 
cookie-based authentication credentials. Other attacks are also 
possible.

10. MoinMoin Unspecified Privilege Escalation Vulnerability
BugTraq ID: 10805
Remote: Yes
Date Published: Jul 26 2004
Relevant URL: http://www.securityfocus.com/bid/10805
Summary:
MoinMoin is reported prone to an unspecified privilege escalation 
vulnerability. It is reported that this issue presents itself if access 
control lists are not applied.  An unspecified erroneous function allows 
remote attackers to carry out privileged tasks without proper access 
validation.  Remote attackers may gain read and write access to sensitive 
data.

Due to a lack of details, further information is not available at the 
moment. This BID will be updated as more information becomes available. 

This issues is identified in MoinMoin versions 1.2.2 and prior.

11. SoX WAV File Buffer Overflow Vulnerability
BugTraq ID: 10819
Remote: No
Date Published: Jul 28 2004
Relevant URL: http://www.securityfocus.com/bid/10819
Summary:
The WAV header handling code in SoX is reported to contain a buffer 
overflow vulnerability. This issue is due to a failure of the application 
to validate string lengths when copying user-supplied data into finite 
buffers in process memory.

The attacker must be able to present a malicious WAV file to an 
unsuspecting user. The user must employ the affected application to either 
listen to, or process the malicious file.

Ultimately a malicious attacker may exploit this issue to execute 
arbitrary code on the affected computer with the privileges of the user who 
started the affected application.

12. DansGuardian Hex Encoded File Extension URI Content Filter B...
BugTraq ID: 10823
Remote: Yes
Date Published: Jul 29 2004
Relevant URL: http://www.securityfocus.com/bid/10823
Summary:
It is reported that DansGuardian contains a content filter bypass 
vulnerability when handling hex encoded file extensions in URIs.

Under some installations, this may violate security policy, or allow 
users to inadvertently access malicious web content.

13. Oracle Database Default Library Directory Privilege Escalati...
BugTraq ID: 10829
Remote: No
Date Published: Jul 30 2004
Relevant URL: http://www.securityfocus.com/bid/10829
Summary:
Oracle database implementations are reportedly prone to a default 
library directory privilege escalation vulnerability.  This issue arises due 
to a default configuration error that will permit the attacker to 
replace libraries required by setuid root applications with arbitrary code.

This issue would allow an Oracle software owner to execute code as the 
superuser, taking control of the entire system.

It should be noted that this vulnerability only affects Oracle on 
UNIX/Linux platforms.

14. Mozilla Firefox XML User Interface Language Browser Interfac...
BugTraq ID: 10832
Remote: Yes
Date Published: Jul 30 2004
Relevant URL: http://www.securityfocus.com/bid/10832
Summary:
Mozilla Firefox is reported prone to an interface spoofing 
vulnerability. The issue presents itself because JavaScript code is allowed to hide 
the Mozilla Firefox interface and status bar by default. A fake Mozilla 
firefox interface may be created using the XML User Interface Language 
API, this interface may aid in phishing style attacks.

This misrepresentation may fool a user into trusting a malicious site, 
which would likely ask the user to submit sensitive or private 
information.

15. Citadel/UX Username Buffer Overflow Vulnerability
BugTraq ID: 10833
Remote: Yes
Date Published: Jul 30 2004
Relevant URL: http://www.securityfocus.com/bid/10833
Summary:
A buffer overrun vulnerability is reported for Citadel/UX. The problem 
occurs due to insufficient bounds checking when processing 'USER' 
command arguments.

An anonymous remote attacker may be capable of exploiting this issue to 
execute arbitrary code. This however has not been confirmed. Failed 
exploit attempts may result in a denial of service.

III. LINUX FOCUS LIST SUMMARY
-----------------------------
1. SSO on Linux (Thread)
Relevant URL:

http://www.securityfocus.com/archive/91/370342

IV. NEW PRODUCTS FOR LINUX PLATFORMS
------------------------------------
1. Cyber-Ark  Inter-Business Vault
By: Cyber-Ark
Platforms: Linux, Windows 2000, Windows NT, Windows XP
Relevant URL: 
http://www.cyber-ark.com/datasecuritysoftware/inter-business_vault.htm
Summary: 

Based on Cyber-Ark Software's Vaulting Technology, the Inter-Business 
Vault, an information security solution that enables organizations to 
safely overcome traditional network boundaries in order to securely share 
business information among customers, business partners, and remote 
branches. It provides a seamless, LAN-like experience over the Internet 
that includes all the security, performance, accessibility, and ease of 
administration required to allow organizations to share everyday 
information worldwide. To learn more about these core attributes of the 
Inter-Business Vault click on the relevant link below:

2. EnCase Forensic Edition
By: Guidance Software Inc.
Platforms: DOS, FreeBSD, Linux, MacOS, NetBSD, OpenBSD, PalmOS, 
Solaris, UNIX, Windows 2000, Windows 95/98, Windows NT, Windows XP
Relevant URL: 
http://www.guidancesoftware.com/products/EnCaseForensic/index.shtm
Summary: 

EnCase Forensic Edition Version 4 delivers the most advanced features 
for computer forensics and investigations. With an intuitive GUI and 
superior performance, EnCase Version 4 provides investigators with the 
tools to conduct large-scale and complex investigations with accuracy and 
efficiency. Guidance Software?s award winning solution yields 
completely non-invasive computer forensic investigations while allowing 
examiners to easily manage large volumes of computer evidence and view all 
relevant files, including "deleted" files, file slack and unallocated 
space. 

The integrated functionality of EnCase allows the examiner to perform 
all functions of the computer forensic investigation process. EnCase's 
EnScript, a powerful macro-programming language and API included within 
EnCase, allows investigators to build customized and reusable forensic 
scripts.

3. KeyGhost SX
By: KeyGhost Ltd
Platforms: BeOS, DOS, Linux, OS/2, Solaris, SunOS, Windows 2000, 
Windows 95/98, Windows NT, Windows XP
Relevant URL: http://www.keyghost.com/SX/
Summary: 

KeyGhost SX discreetly captures and records all keystrokes typed, 
including chat conversations, email, word processor, or even activity within 
an accounting or specialist system. It is completely undetectable by 
software scanners and provides you with one of the most powerful stealth 
surveillance applications offered anywhere. 

Because KeyGhost uses STRONG 128-Bit encryption to store the recorded 
data in it?s own internal memory (not on the hard drive), it is 
impossible for a network intruder to gain access to any sensitive data stored 
within the device.

4. SafeKit
By: Evidian Inc.
Platforms: AIX, HP-UX, Linux, Solaris, Windows 2000
Relevant URL: http://www.evidian.com/safekit/index.htm
Summary: 

Evidian's SafeKit technology makes it possible to render any 
application available 24 hours per day. With no extra hardware: just use your 
existing servers and install this software-only solution.

This provides ultimate scalability. As your needs grow, all you need to 
do is add more standard servers into the cluster. With the load 
balancing features of SafeKit, you can distribute applications over multiple 
servers. If one system fails completely, the others will continue to 
serve your users.

5. Astaro Linux Firewall
By: Astaro
Platforms: Linux
Relevant URL: http://www.astaro.com/php/statics.php?action=asl&lang=gb
Summary: 

Astaro Linux Firewall: All-in-one firewall, virus protection, content 
filtering and spam protection internet security software package for 
Linux. 
Free download for home users.

6. CAT Cellular Authentication Token and eAuthentication Servic...
By: Mega AS Consulting Ltd
Platforms: Java, Linux, OpenBSD, Os Independent, SecureBSD, Solaris, 
UNIX, Windows 2000, Windows NT
Relevant URL: http://www.megaas.co.nz
Summary: 

Low cost, easy to use Two Factor Authentication One Time Password token 
using the Cellular. Does not use SMS or communication, manages multiple 
OTP accounts - new technology. For any business that want a safer 
access to its Internet Services. More information at our site.
 
We also provide eAuthentication service for businesses that will not 
buy an Authentication product but would prefer to pay a monthly charge 
for authentication services from our our CAT Server.

V. NEW TOOLS FOR LINUX PLATFORMS
--------------------------------
1. Firewall Builder 2.0
By: Vadim Kurland
Relevant URL: http://www.fwbuilder.org/
Platforms: FreeBSD, Linux, MacOS, Solaris, Windows 2000, Windows XP
Summary: 

Firewall Builder consists of a GUI and set of policy compilers for 
various firewall platforms. It helps users maintain a database of objects 
and allows policy editing using simple drag-and-drop operations. The GUI 
and policy compilers are completely independent, and support for a new 
firewall platform can be added to the GUI without any changes to the 
program (only a new policy compiler is needed). This provides for a 
consistent abstract model and the same GUI for different firewall platforms. 
It currently supports iptables, ipfilter, and OpenBSD pf.

2. Lepton's Crack 20031130
By: Lepton and Nekromancer
Relevant URL: http://www.nestonline.com/lcrack/lcrack-20031130-beta.zip
Platforms: Linux, MacOS, Os Independent, UNIX, Windows 2000, Windows 
NT, Windows XP
Summary: 

Lepton's Crack is a generic password cracker. It is easily-customizable 
with a simple plugin system and allows system administrators to review 
the quality of the passwords being used on their systems. It can 
perform a dictionary-based (wordlist) attack as well as a brute force 
(incremental) password scan. It supports standard MD4 hash, standard MD5 hash, 
NT MD4/Unicode, Lotus Domino HTTP password (R4), and SHA-1 hash 
formats. LM (LAN Manager) plus appending and prepending

3. popa3d v0.6.4.1
By: Solar Designer, solar@openwall.com
Relevant URL: http://www.openwall.com/popa3d/
Platforms: Linux, Solaris
Summary: 

popa3d is a POP3 daemon which attempts to be extremely secure, 
reliable, RFC compliant, and fast (in that order).

4. tinysofa enterprise server 2.0-rc1
By: Omar Kilani
Relevant URL: http://www.tinysofa.org
Platforms: Linux, POSIX
Summary: 

tinysofa enterprise server is a secure server targeted enterprise grade 
operating system. It is based on Trustix Secure Linux and includes a 
complete distribution port to Python 2.3 and RPM 4.2, an overhauled PAM 
authentication system providing system-wide authentication 
configuration, the latest upstream packages, the replacement of ncftp with lftp, the 
addition of gdb and screen, feature additions to the swup updater that 
provide multiple configuration file support, user login FTP support, 
enable/disable support, variable expansion support (allows multiple 
architectures), and many enhancements.

5. cenfw 0.2 beta
By: Peter Robinson
Relevant URL: http://www.securegateway.org
Platforms: Linux, Windows 2000, Windows 95/98, Windows CE, Windows NT, 
Windows XP
Summary: 

The Centron IPTables Firewall Gui is an object oriented, database 
driven, windows interface to linux IPtables firewall rules.

6. TinyCA v0.6.4
By: Stephan Martin
Relevant URL: http://tinyca.sm-zone.net/
Platforms: Linux, OpenNMS, POSIX
Summary: 

TinyCA is a simple GUI written in Perl/Tk to manage a small 
certification authority. It is based on OpenSSL and Perl modules from the OpenCA 
project. TinyCA lets you manage x509 certificates. It is possible to 
export data in PEM or DER format for use with servers, as PKCS#12 for use 
with clients, or as S/MIME certificates for use with email programs. It 
is also possible to import your own PKCS#10 requests and generate 
certificates from them.

VII. SPONSOR INFORMATION
-----------------------

This Issue is Sponsored By: SecurityFocus 

Want to keep up on the latest security vulnerabilities? Don't have time 
to
visit a myriad of mailing lists and websites to read the news? Just add 
the
new SecurityFocus RSS feeds to your freeware RSS reader, and see all 
the
latest posts for Bugtraq and the SF Vulnernability database in one
convenient place. Or, pull in the latest news, columnists and feature
articles in the SecurityFocus aggregated news feed, and stay on top of
what's happening in the community!

http://www.securityfocus.com/rss/index.shtml

------------------------------------------------------------------------