Adobe Reader and Acrobat - Black Tuesday continues

Published: 2009-10-13
Last Updated: 2009-10-13 23:07:35 UTC
by Daniel Wesemann (Version: 1)
6 comment(s)

It ain't just Microsoft ... while MS issued a deluge of patches today, Adobe pushes just one, but theirs addresses no less than 29!! gaping holes in one single update.  As we reported earlier, at least one of these 29 vulnerabilities is already being actively exploited. So if you are using Acrobat or Adobe Reader, no matter whether on Unix Windows or Mac, you definitely should take a close look at and start rolling the update. If we were in the habit of rating Adobe patches like Microsoft's, this one would be a "Critical"

6 comment(s)

Microsoft October 2009 Black Tuesday Overview

Published: 2009-10-13
Last Updated: 2009-10-13 21:08:21 UTC
by Johannes Ullrich (Version: 1)
5 comment(s)

Overview of the October 2009 Microsoft patches and their status.

# Affected Contra Indications Known Exploits Microsoft rating ISC rating(*)
clients servers
MS09-050 Vulnerabilities in SMBv2 Could Allow Remote Code Execution (Vista and Windows Server 2008 SP2 only)
KB 975517
first mentioned in
 KB 975497
 CVE-2009-3103 is
publicly known!
  see our diary here.
Critical Critical
 MS09-051 Vulnerabilities in Windows Media Runtime Could Allow Remote Code Execution
Windows Media Runtime
KB 975682 CVE-2009-0555 known
Critical Important
 MS09-052 Vulnerability in Windows Media Player Could Allow Remote Code Execution
Replaces MS08-076
Windows Media Format
KB 974112 No known exploits. Severity:Critical
Critical Critical
MS09-053 Vulnerabilities in FTP Service for Internet Information Services Could Allow Remote Code Execution
IIS FTP Service
KB 975254 Exploits Known for both
Important Critical
 MS09-054 Cumulative Security Update for Internet Explorer
Replaces MS09-034
Internet Explorer
KB 974455 Exploits known for
Severity: Critical
Exploitability: 2,1,2,2
Critical Critical
 MS09-055 Cumulative Secuirty Update of ActiveX Kill Bits
Replaces MS09-032
ActiveX Killbits
KB 973525 No known exploits. Severity:Critical
Exploitability: N/A
Critical Important
 MS09-056 Vulnerabiliites in Windows CryptoAPI Could Allow Spoofing
Replaces MS04-007
Windows CryptoAPI
KB 974571 publically known
(NULL exploits)
Critical Important
 MS09-057 Vulnerability in Indexing Service could allow remote code execution if user browses to a malicious page.
Replaces MS06-053
Indexing Service
KB 969059 No known exploits. Severity:Important
Critical Important
 MS09-058 Vulnerability in Windows Kernel could allow privilege escalation.
Replaces MS06-022 and MS08-064
Windows Kernel
KB 971486 No known exploits. Severity:Important
Important Important
 MS09-059 Vulnerability in Local Security Authority Subsystem Service Could Allow Denial of Service
KB 975467 No known exploits. Severity:Important
Important Important

Vulnerabilities in Microsoft Active Template Library (ATL) ActiveX Controls for Office Remote Code Execution
Replaces MS08-015

Active Template Library

KB 973965 No known exploits. Severity:Critical
Critical Important

Vulnerabiliites in the Microsoft .NET Common Language Runtime Could Allow Remote Code Execution
Replaces MS07-040

 .Net Runtime / Silverlight

KB 974378 CVE-2009-2497
is public.
Critical Critical
MS09-062 Multiple vulnerabilities allow arbitrary code execution. This affect windows, Office (including the viewer), SQLserver and various developer tools. Also affects Forefront Client Security on Windows 2000 SP 4.
Replaces MS08-052.
KB 957488 No publicly known exploits. Severity:Critical
Critical Critical
We will update issues on this page for about a week or so as they evolve.
We appreciate updates
US based customers can call Microsoft for free patch related support on 1-866-PCSAFETY
(*): ISC rating
  • We use 4 levels:
    • PATCH NOW: Typically used where we see immediate danger of exploitation. Typical environments will want to deploy these patches ASAP. Workarounds are typically not accepted by users or are not possible. This rating is often used when typical deployments make it vulnerable and exploits are being used or easy to obtain or make.
    • Critical: Anything that needs little to become "interesting" for the dark side. Best approach is to test and deploy ASAP. Workarounds can give more time to test.
    • Important: Things where more testing and other measures can help.
    • Less Urgent: Typically we expect the impact if left unpatched to be not that big a deal in the short term. Do not forget them however.
  • The difference between the client and server rating is based on how you use the affected machine. We take into account the typical client and server deployment in the usage of the machine and the common measures people typically have in place already. Measures we presume are simple best practices for servers such as not using outlook, MSIE, word etc. to do traditional office or leisure work.
  • The rating is not a risk analysis as such. It is a rating of importance of the vulnerability and the perceived or even predicted threat for affected systems. The rating does not account for the number of affected systems there are. It is for an affected system in a typical worst-case role.
  • Only the organization itself is in a position to do a full risk analysis involving the presence (or lack of) affected systems, the actually implemented measures, the impact on their operation and the value of the assets involved.
  • All patches released by a vendor are important enough to have a close look if you use the affected systems. There is little incentive for vendors to publicize patches that do not have some form of risk to them

Johannes B. Ullrich, Ph.D.
SANS Technology Institute

5 comment(s) seems to be down at the moment - Thanks to all that wrote in to let us know.

Cyber Security Awareness Month - Day 13 Proxies (TCP 3128, 8080 & ......)

Published: 2009-10-13
Last Updated: 2009-10-13 11:51:59 UTC
by Mark Hofman (Version: 1)
2 comment(s)

Proxy servers are used to manage access to the Internet in companies.  It is a tool to check, control, report and otherwise manage staff access to the Internet and is an important tool to enforce policies.  There are numerous products on the market, the more well known ones are of course Squid and Microsoft's ISA.  They are typically deployed either in the Internal network or in the DMZ or in both zones.  The ports used are typically 3128, 8080 and 80, however like any TCP application any port can be used. 

Proxies do have their evil twins, Open Proxies.  Have you ever had that sinking feeling when looking at firewall rules or web usage and you have noticed that your firewall rule allows the Internet to access your proxy server.  Your monthly usage has increased hundred fold, or of the 500 people in your organisation 9,876 of them are currently using your proxy server?

Open proxies, unless deliberately deployed are typically mis-configured firewalls, proxy servers or web servers, but can also be the result of a compromise or malware.   It is a convenient avenue to browse anonymously and can be used to propagate things such as undesirable content. Ports 3128 and 8080 are one of the most scanned ports.  As many of you will know there are sites that will happily publish the IP  address and ports of open proxies.  

In many countries the use of an open proxy may be considered illegal as you are using someone else's computer, often without their knowledge.   The company/person whose computer is being used as an open proxy may in some jurisdictions also be in breach of some laws, especially if it is being used to propagate child porn or is being used in other criminal activity (Am not a lawyer, so get legal advice if you use open proxies or find one in your network and need to know for sure).  

If not patching today, maybe make today your "check for open proxies in my network day".

Mark H 

2 comment(s)


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