ep's blog

Security Team creates a Rogue CA by targeting MD5 weaknesses


A group that presented at the the Chaos Communication Congress in Berlin
showed the ability to convert a non-CA certificate into a CA
certificate, breaking the trust of the PKI.

This was done by using a large array of fast computers (200 Playstation
3's) in order to create a CSR that would force a weakly signed
Certificate. This certificate normally would not be allowed to sign
other CSRs.

Multiple vulnerabilities found in Drupal Core


This bug affects the update mechanism in Drupal. Via cross site
scripting, a malicious user may be able to cause the superuser to
execute old updates that may damage the database.

Upgrading to 5.13 or 6.7 will mitigate the bug. Alternatively, a patch
is available that will fix this bug, although it will not update other
non-security fixes in the code.

Multiple vulnerabilities in Adobe Acrobat Reader [Fwd: [sns.ias.edu #1633]


Multiple vulnerabilities in Adobe Acrobat/Reader in versions <8.1.3
could lead to arbitrary code execution when a user opens a malicious PDF

There are known exploits for these vulnerabilities. Users should use
caution when opening PDF files and upgrade to version 8.1.3 or 9 of
Adobe Acrobat/Reader.

Fedora 9 kernel and VMware-server-2.0.0-116503.i386

Fedora updated the kernel to over the weekend.  I ran into many of the issues that I had before with getting VMware-server-1.0.7 working with the new kernel.

I was able to compile it using the same vmware-any-any-117-itpsycho patches, but it crashed the system whenever I tried to start a VM.

Toward the end of September, VMware released their VMware 2.0 product.  I had tried a pre-release version, but it was not working well at that time.  I decided to give the production version a try before reverting back to an older kernel.

Fedora 9 kernel and VMware-server-1.0.7-108231

Whenever there is a new kernel that comes out for Fedora, it is a treat to try and get VMware-server working again.  For some reason the vmware modules need to be patched before they will compile.

For this last batch, I found that I had to upgrade to VMware-server-1.0.7 and apply the vmware-any-any-update117-itpsycho patch.  Typically a vmware-any-any patch has solved these types of problems in the past, however, this one was tough to find.  Here are the two articles that I finally found that put me on the correct path.

SA08-253A: Microsoft Updates for Multiple Vulnerabilities

September 9th was Microsoft's Patch Tuesday.  This is the day when they update Windows with the latest fixes to vulnerabilities from the previous month.

Make sure your computer is up to date with the latest patches to avoid vulnerability issues.


SA08-253A: Microsoft Updates for Multiple Vulnerabilities - Microsoft Updates for Multiple Vulnerabilities [US-CERT Cyber Security Alerts]

Possible compromised openssh packages from RedHat for RHEL4 and RHEL5

http://www.redhat.com/security/data/openssh-blacklist.html - RedHats distribution servers were infiltrated and some openssh packages were compromised. There is a small possibility that some RHEL4 and RHEL5 systems who updated during the compromise have installed malicious openssh packages. RedHat has released a script to determine if the system has been compromised. It is suggested that the script (available at the URL above) be run on all RHEL4 and RHEL5 machines to determine compromise.

BIND DNS Cache Poisoning Issue

http://www.isc.org/index.pl?/sw/bind/bind-security.php - A weakness in the DNS protocol could lead to DNS poisoning of caching recursive name servers. This affects all non-DNSSEC protected domains. Newer versions of BIND utilize Query Port Randomization for BIND 9 which helps to mitigate the problem, but is not a full solution. The only proven solution to protect your domain from this attack is to implement DNSSEC on your authoritative name servers.