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SCHOOL-IT  July 2004

SCHOOL-IT July 2004

Subject:

FW: 07.30.2004 - Threat: HIGH (ORANGE) - igxglobal Daily SecurityBriefing

From:

"Paul Wood (RNESU)" <[log in to unmask]>

Reply-To:

School Information Technology Discussion <[log in to unmask]>

Date:

Fri, 30 Jul 2004 10:36:28 -0400

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (372 lines)

I don't know if anyone else receives this, but it's of particular interest
today.

Paul Wood

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Security Briefing

SECURITY STANDOUTS:



1. VULNERABILITY- Mozilla and Mozilla Firefox has been found vulnerable to
serious spoofing.



2. VULNERABILITY- DansGuardian has been found vulnerable to a filter bypass
vulnerability.



3. VULNERABILITY- SCO has released a patch for a Sendmail vulnerability from
May 2003.



4. VULNERABILITY- A vulnerability has been disclosed in Check Point's VPN
product line, allowing for full system compromise.



5. VULNERABILITY- ASPRunner has been found vulnerable to multiple exploit
methods.





SUMMARY:



igxglobal remains at threat level HIGH (ORANGE) as a major vulnerability was
disclosed yesterday in Check Point's VPN product line.  Mozilla has been
found vulnerable to serious spoofing attacks, and DansGuardian has been
found vulnerable to a filter bypass vulnerability.



Several security administrators around the Internet are reporting on large
ssh port scanning occurring.  Systems have been compromised during this
attack as a result of weak passwords.  igxglobal is not currently aware
currently of any 0-Day threat to OpenSSH, but as administrators it is time
to review our ssh configurations:



1) Make sure your SSH servers are current.  Current OpenSSH is version
3.8.1p1



2) Disable login as root.  It becomes more time consuming to commit a
dictionary attack against a system when two accounts must be compromised.



3) For SSH systems with limited account access, consider disabling password
authentication.  Authentication by encryption key is preferred.



4) Require strong passwords of all users.  Passwords should be more than 10
characters, a combination of alpha-numeric characters, and should be changed
every 30 days.



Although no new threats have been reported in Internet Explorer over the
past week, the 9 unpatched vulnerabilities in this browser along with
widespread use of these in attacks continue keep this software as the
greatest threat to computing environments.




If you have questions on these specific issues or your security in general
visit the DSB Online web site at http://dsb.igxglobal.com or contact
igxglobal via web: http://www.igxglobal.com or email: [log in to unmask]





NEW ACTIVITY:



1. Mozilla / Mozilla Firefox User Interface Spoofing Vulnerability - July
30, 2004



A vulnerability has been reported in Mozilla and Mozilla Firefox, allowing
malicious websites to spoof the user interface.



The problem is that Mozilla and Mozilla Firefox don't restrict websites from
including arbitrary, remote XUL (XML User Interface Language) files. This
can be exploited to "hijack" most of the user interface (including tool
bars, SSL certificate dialogs, address bar and more), thereby controlling
almost anything the user sees.



The Mozilla user interface is built using XUL files.



A PoC (Proof of Concept) exploit for Mozilla Firefox has been published. The
PoC spoofs a SSL secured PayPal website.



This has been confirmed using Mozilla 1.7 for Linux, Mozilla Firefox 0.9.1
for Linux, Mozilla 1.7.1 for Windows and Mozilla Firefox 0.9.2 for Windows.
Prior versions may also be affected.



Original Advisory and Proof of Concept:

http://www.nd.edu/~jsmith30/xul/test/spoof.html



Source: Secunia

http://secunia.com/advisories/12188/



To get community support and perspective on this issue click here:

http://dsb.igxglobal.com/modules.php?name=Forums&file=viewforum&f=108





2. DansGuardian Hex Encoding URL Banned Extension Filter Bypass
Vulnerability - July 30, 2004



DansGuardian (http://dansguardian.org) is a web Open Source content filter
available for various Unix based operating systems, including Linux. It
filters the actual content of pages based on many methods including phrase
matching, PICS filtering and URL filtering.



DansGuardian may allow malicious users to bypass the extension filter rules
when processing URLs which contain an hex encoded filename (e.g:
http://server/file.%65%78%65 or http://server/file%2eexe).



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



Source: zone-h

http://www.zone-h.org/en/advisories/read/id=5162/



To get community support and perspective on this issue click here:

http://dsb.igxglobal.com/modules.php?name=Forums&file=viewforum&f=109





SPAM:

24 Hour SPAM Stats July 29, 2004:



Rejected:          51%

SPAM:              30%

Virus:             0%

Valid:             18%



source: igxglobal

http://www.igxglobal.com





VIRUS:

Latest Virus Threats July 30, 2004



Virus Name                              Threat          Date



WORM_ZINDOS.A                           Low             Jul 28

WORM_MABUTU.A                           Low             Jul 27

WORM_LOVGATE.AE                         Low             Jul 27

WORM_MYDOOM.M                           Medium          Jul 26

WORM_KORGO.AC                           Low             Jul 22

WORM_MYDOOM.L                           Low             Jul 20

WORM_BAGLE.AH                           Medium          Jul 19

WORM_WUKILL.E                           Low             Jul 19

WORM_LOVGATE.AJ                         Low             Jul 19

WORM_KORGO.Y                            Low             Jul 18



source: Trend Micro





TOP EXPLOITS:



WINDOWS

1. Internet Information Services (IIS)

2. Microsoft SQL Server (MSSQL)

3. Windows Authentication

4. Internet Explorer (IE)

5. Windows Remote Access Services

6. Microsoft Data Access Components (MDAC)

7. Windows Scripting Host (WSH)

8. Microsoft Outlook and Outlook Express

9. Windows Peer to Peer File Sharing (P2P)

10. Simple Network Management Protocol (SNMP)



UNIX

1. BIND Domain Name System

2. Remote Procedure Calls (RPC)

3. Apache Web Server

4. General UNIX Authentication Accounts with No Passwords or Weak Passwords

5. Clear Text Services

6. Sendmail

7. Simple Network Management Protocol (SNMP)

8. Secure Shell (SSH)

9. Misconfiguration of Enterprise Services NIS/NFS

10. Open Secure Sockets Layer (SSL)





ACTIONABLES:



1. igxglobal's recommendations to mitigate the risk of vulnerabilities in
Mozilla:



- Do not follow untrusted links.



- Wait for the Mozilla organization and / or your OS vendor to release an
update for this vulnerability.



To get community support and perspective on this issue click here:

http://dsb.igxglobal.com/modules.php?name=Forums&file=viewforum&f=108





2. igxglobal's recommendations to mitigate the risk of the vulnerability in
DansGuardian:



- Upgrade to DansGuardian 2.8.0.1.  As always, test on a non-production
system.



To get community support and perspective on this issue click here:

http://dsb.igxglobal.com/modules.php?name=Forums&file=viewforum&f=109





To subscribe or unsubscribe to the Daily Security Briefing go to:

http://www.igxglobal.com/dsb/register.html





DISCLAIMER:

The information and reference materials contained herein is intended solely
for the information of the reader. It is intended to offer a general
understanding of the status of security as recognized by igxglobal.
Information used is a cumulation of data gathered by igxglobal as well as
other industry recognized information sources. This electronic message is
also subject to standard copyright/ownership laws.  It may be reproduced, or
re-transmitted without modification and in it's original form without the
consent of the originator.

_______________________________________________
igx-dsb mailing list
[log in to unmask]

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