Alerts

Microsoft May 2013 Black Tuesday Overview, (Tue, May 14th)

Latest Alerts - Tue, 05/14/2013 - 16:12

Overview of the May 2013 Microsoft patches and their status.

# Affected Contra Indications - KB Known Exploits Microsoft rating(**) ISC rating(*) clients servers MS13-037 The usual monthly MSIE cumulative patch, adding fixes for 11 more vulnerabilities. All but one are use after free vulnerabilities. The odd one is about vbscript allowing read access to JSON data related to another domain.
Replaces MS13-028. MSIE

CVE-2013-0811
CVE-2013-1297
CVE-2013-1306
CVE-2013-1307
CVE-2013-1308
CVE-2013-1309
CVE-2013-1310
CVE-2013-1311
CVE-2013-1312
CVE-2013-1313
CVE-2013-2551 KB 2829530 No publicly known exploits Severity:Critical
Exploitability:1 Critical Important MS13-038 The anticipated IE8 fix.
Note that IE9 is listed as affected as well, but it's not given a rating "because the known attack vectors for the vulnerability discussed in this bulletin are blocked in a default configuration."
Note that this is not the cumulatieve IE patch, nor is the fix part of the cumulative patch this month. The bulletin states there is no need to uninstall the MSFT Fix-it released earlier for this vulnerability. MSIE

CVE-2013-1347 KB 2847204 Publicly discussed and exploit code available. Security advisory 2847140 Severity:Critical
Exploitability:1 PATCH NOW Important MS13-039 A vulnerability in the handling of HTTP headers in the HTTP stack allows a Denial of Service. HTTP.sys

CVE-2013-1305 KB 2829254 No publicly known exploits. Severity:Important
Exploitability:3 Important Important MS13-040 Incorrect validation of signed XML files allows for failing to detect changes in said files and an authentication bypass allowing unauthenticated access. The impact of these vulnerabilities high depends on what applications make use of these features.
Replaces MS10-041. .NET

CVE-2013-1336
CVE-2013-1337 KB 2836440 Microsoft claims the vulnerability CVE-2013-1337 was publicly disclosed. Severity:Important
Exploitability:? Important Important MS13-041 A memory corruption vulnerability allows random code execution in the context of the current user.
Note the lync user level install of Lync 2010 Attendee is only available from the Microsoft Download Center - not via automatic updates.
Replaces MS12-066. Lync

CVE-2013-1302 KB 2834695 No publicly known exploits. Severity:Important
Exploitability:2 Critical Important MS13-042 A multitude of vulnerabilities in Publisher allow random code execution.
Replaces MS11-091. Publisher

CVE-2013-1316
CVE-2013-1317
CVE-2013-1318
CVE-2013-1319
CVE-2013-1320
CVE-2013-1321
CVE-2013-1322
CVE-2013-1323
CVE-2013-1327
CVE-2013-1328
CVE-2013-1329 KB 2830397 No publicly known exploits Severity:Important
Exploitability:1 Critical Important MS13-043 Incorrect handling of shape data in word allows random code execution with the rights of the logged on user.
Note that when word is used to read incoming email messages, it can be affected merely via previewing incoming emailed RTF data! Word

CVE-2013-13335 KB 2830399 No publicly known exploits Severity:Important
Exploitability:2 Critical Important MS13-044 A problem in handling XML files that references external files in Visio allows information leak and read access with the rights of the logged-on user.
Replace MS11-060 and MS13-023. Visio

CVE-2013-1301 KB 2834692 No publicly known exploits. Severity:Important
Exploitability:3 Important Important MS13-045 Windows Writer - part of the Windows Essentials package - is a client to manage blogs. The vulnerability allows overriding proxy settings and overwriting files accessible to the logged-on user. Windows Essentials

CVE-2013-0096 KB 2813707 No publicly known exploits Severity:Important
Exploitability:3 Critical Important MS13-046 Multiple vulnerabilities in Kernel Mode Drivers allow privilege escalation.
Replaces MS13-036 and MS13-031. Kernel Mode Drivers

CVE-2013-1332
CVE-2013-1333
CVE-2013-1334 KB 2840221 No publicly known exploits Severity:Important
Exploitability:1 Imporant Important 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.

(**): The exploitability rating we show is the worst of them all due to the too large number of ratings Microsoft assigns to some of the patches.

--
Swa Frantzen -- Section 66

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

Microsoft Security Advisory overview, (Tue, May 14th)

Latest Alerts - Tue, 05/14/2013 - 16:08
Malware Protection Engine

Microsoft released security advisory 2846338 indicating that they have update their Malware Protection Engine (used in a varierty of their anti malware products) to fix a vulnerability in said engine where an attacker would be able to execute random code in the context of LocalSytem. Micorosft claims the vulnerability was publicly disclosed as a DoS.

CVE: CVE-2013-1346

ActiveX killbits rollup

Microsoft released security advisory 2820197 describing the addition of killbits for Honeywell Enterprise Buildings Integrator: {0d080d7d-28d2-4f86-bfa1-d582e5ce4867} and SymmetrE and ComfortPoint Open Manager: {29e9b436-dfac-42f9-b209-bd37bafe9317}

IE10 - flash

Microsoft updated security advisory 2755801 to announce the availability of update Adobe Flash libraries. This corresponds with APSB13-14.

CVE-2013-1347 MSHTML Shim Workaround update

Microsoft updated security advisory 2847140 to reflect the release of MS13-08

--
Swa Frantzen -- Section 66

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

CVE-2013-2094: Linux privilege escalation, (Tue, May 14th)

Latest Alerts - Tue, 05/14/2013 - 14:44

A vulnerability was discovered using fuzzing in linux kernels 2.6.37 till 3.8.9. The vulenrability requires the kernel to be compiled with PERF_EVENTS, but unfortunately that seems the case for quite some linux distributions. CentOS even backported the vulnerability to 2.6.32.

Impact is local privilege escalation, and exploit code is readily available.

More information: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-2094

Hat tip: James for sending us some pointers to this.

--
Swa Frantzen -- Section 66

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

Firefox & Thunderbird released, (Tue, May 14th)

Latest Alerts - Tue, 05/14/2013 - 10:26

Mozilla decided to join the mayhem on Black Tuesday this month and released Firefox and Thunderbird.

This updates to:

  • Firefox 21.0
  • Firefox ESR 17.0.6
  • Thunderbird 17.0.6
  • Thunderbird ESR 17.0.6

Release notes:

https://www.mozilla.org/security/known-vulnerabilities/firefox.html

Security content o fthe updates:

 

--
Swa Frantzen -- Section 66

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

ISC StormCast for Tuesday, May 14th 2013 http://isc.sans.edu/podcastdetail.html?id=3305, (Tue, May 14th)

Latest Alerts - Mon, 05/13/2013 - 18:24
(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

So what passwords are those ssh scanners trying?, (Tue, May 14th)

Latest Alerts - Mon, 05/13/2013 - 18:01

If you run an ssh server (especially if you still run it on the default port), you've no doubt had plenty of folks scan your machine and do password guessing attacks against it.  BTW, you'll never get in mine that way, I only allow public/private key authentication, but that is beside the point here.  I've done a couple of other reports analyzing passwords, and I really like pipal by Robin Wood for much of the analysis (you can grab it from here).  I've been running a kippo ssh honeypot for the day job for about 2 years and I've done a couple of reports on the password guesses for the ThreatTraq webcast, but then I discovered that in addition to firewall logs and the 404 logs, we also collect kippo logs here at the SANS Internet Storm Center.  Ooh, more data!!  If you'd like contribute, please grab https://isc.sans.edu/kipposcript.pl.  So, without further ado, here is what I've found in our kippo data (as of about 15 April 2013).  I should note here, though, that these are the guesses the bad guys are making.  They've developed their lists most likely based on what has worked for someone at some point, so they will be somewhat different from what you find in analyzing passwords from breaches like my analysis of last year's Yahoo breach.

The Basics

Total entries = 15415314
Total unique entries = 46840
 

The Results

Top 10 passwords
123456 = 167854 (1.09%)
password = 113640 (0.74%)
cacutza = 99492 (0.65%)
__--_-__-_ = 79153 (0.51%)
123 = 63557 (0.41%)
root = 61560 (0.4%)
1234 = 58103 (0.38%)
123456789 = 57270 (0.37%)
12345 = 53445 (0.35%)
test = 52231 (0.34%)

Okay, the first thing to note, is that the default password for kippo is 123456, so that may skew the above a bit.  The one I personally find most interesting is the 4th one, '__--_-__-_'.

Top 10 base words
password = 295354 (1.92%)
test = 192825 (1.25%)
pass = 127086 (0.82%)
root = 121704 (0.79%)
cacutza = 99492 (0.65%)
temp = 97145 (0.63%)
p@ssw0rd = 92650 (0.6%)
p4ssword = 88344 (0.57%)
changeme = 74842 (0.49%)
p4ssw0rd = 74329 (0.48%)

So, some variation on password (with or without substitutions).

Password length (count ordered)
6 = 2708563 (17.57%)
8 = 2275062 (14.76%)
7 = 1550776 (10.06%)
9 = 1394644 (9.05%)
10 = 1234997 (8.01%)
4 = 1143617 (7.42%)
5 = 1025693 (6.65%)
12 = 766462 (4.97%)
11 = 647696 (4.2%)
3 = 437702 (2.84%)

The password guesses varied in length from 1 (do people actually allow 1 character passwords?) to 70 characters in length.  The longest ones being shown below

56 = 4504 (0.03%)
57 = 180 (0.0%)
58 = 465 (0.0%)
60 = 17 (0.0%)
62 = 800 (0.01%)
63 = 69 (0.0%)
64 = 369 (0.0%)
70 = 9 (0.0%)
71 = 908 (0.01%)

The mix

One to six characters = 5463941 (35.44%)
One to eight characters = 9289779 (60.26%)
More than eight characters = 6125535 (39.74%)

Only lowercase alpha = 5126974 (33.26%)
Only uppercase alpha = 140773 (0.91%)
Only alpha = 5267747 (34.17%)
Only numeric = 1906165 (12.37%)

First capital last symbol = 135964 (0.88%)
First capital last number = 958843 (6.22%)

One to six characters = 5463941 (35.44%)
One to eight characters = 9289779 (60.26%)
More than eight characters = 6125535 (39.74%)

Only lowercase alpha = 5126974 (33.26%)
Only uppercase alpha = 140773 (0.91%)
Only alpha = 5267747 (34.17%)
Only numeric = 1906165 (12.37%)

First capital last symbol = 135964 (0.88%)
First capital last number = 958843 (6.22%)

Last digit
3 = 1621502 (10.52%)
1 = 1394507 (9.05%)
0 = 620126 (4.02%)
4 = 593100 (3.85%)
6 = 548727 (3.56%)
2 = 478758 (3.11%)
5 = 420699 (2.73%)
9 = 407320 (2.64%)
8 = 318715 (2.07%)
7 = 303304 (1.97%)

Last 3 digits (Top 10)
123 = 1156095 (7.5%)
456 = 380369 (2.47%)
234 = 340074 (2.21%)
345 = 234638 (1.52%)
321 = 212258 (1.38%)
789 = 192424 (1.25%)
678 = 166984 (1.08%)
567 = 154030 (1.0%)
001 = 146204 (0.95%)
111 = 91160 (0.59%)

Character sets
loweralpha: 5126974 (33.26%)
loweralphanum: 4803721 (31.16%)
numeric: 1906165 (12.37%)
loweralphaspecialnum: 803707 (5.21%)
mixedalphanum: 768137 (4.98%)
mixedalphaspecialnum: 641067 (4.16%)
loweralphaspecial: 344881 (2.24%)
upperalphanum: 181283 (1.18%)
mixedalpha: 151523 (0.98%)
special: 149786 (0.97%)
upperalpha: 140773 (0.91%)
upperalphaspecialnum: 133340 (0.86%)
mixedalphaspecial: 91536 (0.59%)
upperalphaspecial: 81044 (0.53%)
specialnum: 66165 (0.43%)

Character set ordering
allstring: 5419270 (35.16%)
othermask: 3833967 (24.87%)
stringdigit: 2622232 (17.01%)
alldigit: 1906165 (12.37%)
stringdigitstring: 478523 (3.1%)
digitstring: 446101 (2.89%)
stringspecial: 184687 (1.2%)
allspecial: 149786 (0.97%)
stringspecialstring: 117368 (0.76%)
digitstringdigit: 114141 (0.74%)
stringspecialdigit: 101918 (0.66%)
specialstring: 25205 (0.16%)
specialstringspecial: 15951 (0.1%)
 

Some final thoughts

Okay, there is some interesting stuff there and if you are interested in the pieces of the standard pipal report that I didn't include there, I've put the full report up on my handler page.  One of the other thing I took a look at was how many in the mix satisfy the standard definition of a "complex" password [lower case, upper case, digits, special characters] (choose 3) and length >= 8.  620413 (4.02%) of the passwords satisfy this definition of complex.  However, when you look at unique passwords, only 1286 (2.75% of the 46840 unique ones) are complex.  So, at least one takeaway is that the more complex you make your crucial passwords the less likely you are to fall victim to this type of password guessing attack.  Of course, 173 of those 1286 were some variation on 'password' with subsitutions or digits and/or special characters tacked on the end.  So, what do you think?  Is there some other aspect of the passwords that I should have looked at?  Let us know in the comment section below or via our contact form.

---------------
Jim Clausing, GIAC GSE #26
jclausing --at-- isc [dot] sans (dot) edu

The opinions expressed here are strictly those of the author and do not necessarily represent those of SANS, the Internet Storm Center, the author's spouse, kids, or pets (except maybe the ornery cat).

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

ISC StormCast for Monday, May 13th 2013 http://isc.sans.edu/podcastdetail.html?id=3302, (Mon, May 13th)

Latest Alerts - Sun, 05/12/2013 - 17:21
(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

Extracting Digital Signatures from Signed Malware, (Sat, May 11th)

Latest Alerts - Sat, 05/11/2013 - 12:43

Sometimes attackers digitally sign their malicious software. Examining properties of the signature helps malware analysts understand the context of the incident. Moreover, analysts could use the signature as an indicator of compromise. Here are some tips and tools for determining whether a suspicious Windows executable has been signed and for extracting the embedded signature in a Linux environment. We'll look at Pyew, Disitool and get a bit of help from OpenSSL.

Microsoft's Windows Authenticode Portable Executable Signature Format document explains that the signatures can be embedded "in a Windows PE file, in a location specified by the Certificate Table entry in Optional Header Data Directories." The location of the signature is stored within the PE header's OptionalHeader structure's Security field.

One way to determine whether the file contains an embedded signature is to use Pyew, which is a command-line hex editor/disassembler for malware analysis. After loading the sample into Pyew, you can look at the size of the IMAGE_DIRECTORY_ENTRY_SECURITY field. A non-zero value indicates that the file probably includes an embedded signature.To do this, load the PE file into Pyew and enter the command "pyew.pe.OPTIONAL_HEADER.DATA_DIRECTORY". Then look at the size of IMAGE_DIRECTORY_ENTRY_SECURITY as shown below:

In the Pyew output above, we see that the size of IMAGE_DIRECTORY_ENTRY_SECURITY is non-zero. This indicates that kiwi.exe probably includes an embedded signature.

Disitool provides another way of determining whether a PE file includes a signature. This tool, created by Didier Stevens, can delete, copy, extract and add signatures. If you attempt to extract a signature from a non-signed file, Disitool will tell you "source file not signed."

In the example below, we see that the file has been signed. The author of this malicious file seems to have used a stolen certificate to sign the specimen. Disitool's "extract" command pulled out the signature, so we can examine it.

Disitool saves the extracted certificate in the binary DER format. You can look at the strings embedded in the DER file to examine its contents. Even better, you can use the following OpenSSL command to convert the DER file into a more informative text file:

openssl pkcs7 -inform DER -print_certs -text -in INPUT_FILE > OUT_FILE

Knowing how to spot signed files and extract signature details can be helpful for malware and forensic analysts. On Windows, you can gather some of these details by right-clicking on the PE file and looking at its properties, as well as with the help of Microsoft's Sign Tool and Sigcheck tools. On Linux, you can accomplish this with the help of Pyew, Disitool and OpenSSL, which are installed on REMnux for your convenience.

 

-- Lenny Zeltser

Lenny Zeltser focuses on safeguarding customers' IT operations at NCR Corp. He also teaches how to analyze malware at SANS Institute. Lenny is active on Twitter and writes a security blog.

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

Microsoft and Adobe Patch Tuesday Pre-Release, (Fri, May 10th)

Latest Alerts - Fri, 05/10/2013 - 10:42

Both Adobe and Microsoft released pre-anouncements for next week's patch Tuesday.

Microsoft is working on having a patch available for the Internet Explorer 8 0-day vulnerability. [1] There are two critical Internet Explorer patches, one specifically for Internet Explorer 8, and the other one for all current versions. The later (refered to as "Bulletin 1" by Microsoft) is likely the usual roll up patch. 

There are the only two critical bulletins next week. The rest covers "the usual" (Office, Windows, Lynx and Windows Essentials) and is rated important.

Adobe announced only one bulletin for Acrobat and PDF Reader. There is no patch scheduled for Cold Fusion at this point.

[1] http://blogs.technet.com/b/msrc/archive/2013/05/09/advance-notification-service-for-the-may-2013-security-bulletin-release.aspx
[2] http://technet.microsoft.com/en-us/security/bulletin/ms13-may
[3] http://www.adobe.com/support/security/bulletins/apsb13-15.html

 

 

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

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

ISC StormCast for Friday, May 10th 2013 http://isc.sans.edu/podcastdetail.html?id=3299, (Fri, May 10th)

Latest Alerts - Thu, 05/09/2013 - 17:44
(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

Adobe Releases 0-day Security Advisory for Coldfusion, Exploit Code Available. Advisory here: http://www.adobe.com/support/security/advisories/apsa13-03.html, (Thu, May 9th)

Latest Alerts - Thu, 05/09/2013 - 07:26

--

John Bambenek

bambenek \at\ gmail /dot/ com

Bambenek Consulting

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

Microsoft released a Fix-it for the Internet Explorer 8 Vulnerability http://support.microsoft.com/kb/2847140, (Thu, May 9th)

Latest Alerts - Thu, 05/09/2013 - 02:47

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

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

ISC StormCast for Thursday, May 9th 2013 http://isc.sans.edu/podcastdetail.html?id=3296, (Thu, May 9th)

Latest Alerts - Wed, 05/08/2013 - 17:26
(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

"De Flashing" the ISC Web Site and Flash XSS issues, (Wed, May 8th)

Latest Alerts - Wed, 05/08/2013 - 11:14

You may have noticed that earlier today, I removed the flash player that we use to play audio files on our site. The trigger for this was a report that the particular flash player we use (an open source player usually used with Wordpress) is suscepible to cross site scripting [1][2]. Instead of upgrading to the newer (patched) version, we instead decided to remove the player. 

The other part of this is that pretty much all current browsers do have reasonable support for HTML 5 audio tags. We do offer our audio files, like the daily podcast, in MP3 as well as Ogg Vorbis format, which covers all major browsers. We also offer links to the direct files in case someone would like to play the files "offline" and we do offer via RSS feeds various MP3/Podcast players. 

So in short, the flash player wasn't worth maintaining. 

On the other hand, we will try to embrace some of the HTML5 features more as we move the site forward. The data will still be available in pretty much any browser (yup. ... lynx), but you will see our graphs and similar parts of the site take advantage of newer browser features to make it easier to navigate the data. For now, we still got a couple of flash movies on the site, but we are working on moving them either to youtube, or using our own (again HTML5 based) solution.

Big thanks to Rafay Baloch [3] for reporting the XSS vulnerability to us! 

Example exploit string to test your own player: player.swf ? playerID= \\%22))} catch(e){alert('Your%20cookies%20are%20mine%20now')} //    (remove spaces, but keep the // at the end)

[1] http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-1464
[2] http://wordpress.org/extend/plugins/audio-player/
[3] http://rafayhackingarticles.net twitter @rafaybaloch

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

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

Are there any websites that are NOT compromised?, (Wed, May 8th)

Latest Alerts - Tue, 05/07/2013 - 17:16

Today was yet another day with lots of compromised websites, some notable others less.

This morning, a reader wrote in to notify us that the county government website of a county in Georgia was compromised. Sure enough, it appeared to serve malicious javascript, launching the usual exploit kit Java exploit (zeroaccess was the readers guess, and I think he was right). With smaller sites/organizations like this, I usually try to give them a call, and in this case, was pretty quickly sent to a person who was responsible for the web site content. Sadly, I don't think this person had any basic understanding of exploit kits or web applications to understand most of what I tried to explain, but she knew someone to contact. As of right now, the web site *appears* to be "clean". Which gets me to the next point, some of the difficulties one encounters in notifying sites:

- Frequently, like in this case, the exploit only shows up on some pages, and not all the time. Sometimes you need to visit with a specific browser, sometimes it is random, or in other cases, the miscreant appears to filter out requests from "administrators" showing them the unaltered site

- It is very hard to NOT get people to go to the URL right away as you talk about it being dangerous. It was relatively early in the morning, and I forgot my usual introduction not to go the site, so sure enough, as I explain which page I noticed as "infected", the person at the phone responded "but it look normal"...

- In particular for small sites like this, the standard blacklists don't work. Virus Totals URL Scanner showed the site as "safe" . Kaspersky Anti Virus on one of my Mac's flagged the javascript with a generic exploit signature and prevented access.

FWIW: My guess is that the site was infected via the Wordpress plugin "Super Cache" which was installed on the site. This plugin had some recent vulnerabilities.

The other compromisse, that created a larger news response, was the compromise of wtop. com and federalnewsradio. com. Both sides are related to each other, so I consider them one compromise. The interesting response in this case was that the site blocked access from users running Internet Explorer, but let others in to the site. I didn't see any exploit code when I retrieved the site, but I am not sure if it is safe to assume that an exploit is only going to attack one particular browsers, the miscreant appears to filter out requests from "administrators" showing them the unaltered site.

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

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

Syria drops from Internet 7th May 2013, (Wed, May 8th)

Latest Alerts - Tue, 05/07/2013 - 17:07

There's been a number of reports that Internet connectivity to Syria has been broken or disabled and there is no official word on what has caused this.

Google's Transparency Report page [1] displays the drop off and a more comprehensive report is on Umbrella labs blog [2]

 

 

[1]  http://www.google.com/transparencyreport/traffic/#expand=SY

[2] http://labs.umbrella.com/2013/05/07/breaking-news-traffic-from-syria-disappears-from-internet/   

 

 

Chris Mohan --- Internet Storm Center Handler on Duty

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

ISC StormCast for Wednesday, May 8th 2013 http://isc.sans.edu/podcastdetail.html?id=3293, (Wed, May 8th)

Latest Alerts - Tue, 05/07/2013 - 17:07
(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

NGINX updates address buffer overflow (CVE-2013-2028) see http://nginx.org/en/CHANGES-1.4, (Tue, May 7th)

Latest Alerts - Tue, 05/07/2013 - 11:36

---------------
Jim Clausing, GIAC GSE #26
jclausing --at-- isc [dot] sans (dot) edu

(c) SANS Internet Storm Center. http://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.
Categories: Alerts

May 2013 OUCH! - Strong Passwords: Passphrases, Using Passwords Securely http://www.securingthehuman.org/resources/newsletters/ouch/2013#May2013, (Tue, May 7th)

Latest Alerts - Tue, 05/07/2013 - 04:30

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Categories: Alerts
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