Xanda's Blog !~!

Yara Detection for Java Applet JMX Remote Code Execution (CVE-2013-0422)

Jan
12

Hi

It’s a bit to late for me to write this, but at least CVE-2013-0422 is no longer a secret.. and yes I can share some yara rule for this

Anyway, thanks to @kafeine for the disclosure and thanks to Immunity for a very good write up.

So here you go:

rule CVE_2013_0422
{
        meta:
                description = "Java Applet JMX Remote Code Execution"
                cve = "CVE-2013-0422"
                ref = "http://pastebin.com/JVedyrCe"
                author = "adnan.shukor@gmail.com"
                date = "12-Jan-2013"
                version = "1"
                impact = 4
                hide = false
        strings:
                $0422_1 = "com/sun/jmx/mbeanserver/JmxMBeanServer" fullword
                $0422_2 = "com/sun/jmx/mbeanserver/JmxMBeanServerBuilder" fullword
                $0422_3 = "com/sun/jmx/mbeanserver/MBeanInstantiator" fullword
                $0422_4 = "findClass" fullword
                $0422_5 = "publicLookup" fullword
                $class = /sun\.org\.mozilla\.javascript\.internal\.(Context|GeneratedClassLoader)/ fullword 
        condition:
                (all of ($0422_*)) or (all of them)
}

Kindly leave comment I you find ways to improvement this rule. Obfuscation? yeah of course can be used to bypassed this rule as well 😉

Thanks

P/S: MyYaraSIG members should have receive this rule/update earlier today. Just git pull everyone 🙂

3 Responses to Yara Detection for Java Applet JMX Remote Code Execution (CVE-2013-0422)

  1. How can someone get signed up to your MyYaraSIG group?

  2. Everybody speaks of the exploit but, there is hardly any information on what to do about it. Thanks a lot for providing a yara rule for the vulnerability.

  3. Hello Web Admin, I noticed that your On-Page SEO is is missing a few factors, for one you do not use all three H tags in your post, also I notice that you are not using bold or italics properly in your SEO optimization. On-Page SEO means more now than ever since the new Google update: Panda. No longer are backlinks and simply pinging or sending out a RSS feed the key to getting Google PageRank or Alexa Rankings, You now NEED On-Page SEO. So what is good On-Page SEO?First your keyword must appear in the title.Then it must appear in the URL.You have to optimize your keyword and make sure that it has a nice keyword density of 3-5% in your article with relevant LSI (Latent Semantic Indexing). Then you should spread all H1,H2,H3 tags in your article.Your Keyword should appear in your first paragraph and in the last sentence of the page. You should have relevant usage of Bold and italics of your keyword.There should be one internal link to a page on your blog and you should have one image with an alt tag that has your keyword….wait there’s even more Now what if i told you there was a simple WordPress plugin that does all the On-Page SEO, and automatically for you? That’s right AUTOMATICALLY, just watch this 4minute video for more information at. Seo Plugin

  4. We are proudly launching the Grand Opening of our long-term associate and collaborator Mural Project
    project that is latest: The Mural Public & Art Centre in Oceanside, CA.

Leave a Reply

Your email address will not be published. Required fields are marked *