Category Archives: Vulnerability Management

Oracle Java Critical Patch Update February 2013 – Special Update Review

Oracle has provide a Java Critical Patch Update (CPU) Special Update for February 2013 how has been released on Tuesday, February 19. On the 5 security vulnerabilities, fixed in this CPU, all of them may be remotely exploitable. The highest CVSS Base Score for vulnerabilities in this CPU is 10.0. 3 vulnerabilities have a CVSS base score upper or equal to 7.0.

As you may know Oracle is using CVSS 2.0 (Common Vulnerability Scoring System) in order to score the reported vulnerabilities. But as you also may know security researchers disagree with the usage of CVSS by Oracle. Oracle play with CVSS score by creating a “Partial+” impact rating how don’t exist in CVSS 2.0, and by interpreting the “Complete” rating in a different way than defined in CVSS 2.0.

Affected products are:

  • JDK and JRE 7 Update 13 and earlier
  • JDK and JRE 6 Update 39 and earlier
  • JDK and JRE 5.0 Update 39 and earlier
  • SDK and JRE 1.4.2_41 and earlier

CVE-2013-1487, CVE-2013-1486 and CVE-2013-1484 have a CVSS base score of 10.0.

CVE-2013-1485 has a CVSS base score of 5.0.

CVE-2013-0169 has a CVSS base score of 4.3.

Boeing-job.com Campaign and Adobe Flash 0days Additional Informations

The 7 February, Adobe has issue security bulletin APSB13-04 for Adobe Flash Player, in order address two vulnerabilities, CVE-2013-0633 and CVE-2013-0634, exploited in the wild.

CVE-2013-0633 (CVSS base score of 9.3) is exploited by tricking a Windows user to open a Microsoft Word document containing a malicious Flash content. CVE-2013-0634 (CVSS base score of 9.3) is exploited by tricking an Apple OS X user to open a web page, containing a malicious Flash content, through Firefox or Safari. But this vulnerability is also exploited by tricking a Windows user to open a Microsoft Word document containing a malicious Flash content.

Affected products are :

  • Adobe Flash Player 11.5.502.146 and earlier versions for Windows and Macintosh
  • Adobe Flash Player 11.2.202.261 and earlier versions for Linux
  • Adobe Flash Player 11.1.115.36 and earlier versions for Android 4.x
  • Adobe Flash Player 11.1.111.31 and earlier versions for Android 3.x and 2.x

These vulnerabilities were discovered exploited in the wild:

  • For CVE-2013-0633, by Sergey Golovanov and Alexander Polyakov of Kaspersky Labs
  • For CVE-2013-0634, by Shadowserver Foundation, MITRE and Lockheed Martin CIRT

As described by Alienvault Labs and by FireEye, the vulnerabilities were exploited through spear phishing email messages targeting several industries including the aerospace one. One of the e-email attached file was using the 2013 IEEE Aerospace Conference schedule, and another reported sample was related to online payroll system of ADP US company.

Detailed analysis have been provided by Alienvault Labs, FireEye and Malware Must Die. All the analysis reported the following domain name ieee[.]boeing-job[.]com as C&C server.

boeing-job[.]com domain name was registered the 22 January 2013, through GoDaddy, with fake registration information’s.

The 5 February http://ieee[.]boeing-job[.]com sub domain was pointing to IP 108.62.10.13, AS15003 in US.
The 6 February http://boeing-job[.]com was pointing to IP 184.168.221.37, AS26496 in US, parking web page of GoDaddy.

But, they’re is always a but, if you take a look in Google you can find the IP address who was used for www.boeing-job[.]com.

google-www.boeing-job.com

This sub domain was pointing to a legit website http://www[.]grupo-gestion[.]com[.]ar, IP 200.123.160.138, AS16814 in Argentina.

By searching on urlQuery, you can find a submission, the 5 February, with this IP. And suprise this submission is regarding a “record.doc” document located in a “/adp/” directory. So we have the ADP word document. Also urlQuery is reporting an alert “FILE-OFFICE Microsoft Office Word with embedded Flash file transfer” regarding the “record.doc” document.

Now let analyze further this server used in the spear phishing campaign. By doing some researches on Google, you will quickly find that weak tools are present on the server and that these tools are freely accessible from Internet…. After some further analysis, we can find that an old default XAMPP installation is present on this server, and that  bad guys have use this weakness in order to install PHP backdoor. The PHP backdoor were also not protected giving full access to the server.

The related “/adp/” directory is empty of the “record.doc” file and most of the server seem to have been cleaned.

But, I discovered an interesting “/jobs/” directory containing a well-known tool, JSbug statistics backend, used in previous drive-by attacks campaign. The contents of the backend allow us to see that a campaign was started since the 22 January by using www.boeing-job[.]com domain name.

jsbug-backend

Also, what is interesting, is that the XAMPP Apache log files were accessible from Internet, without restrictions.

By doing some log analysis we can find the following information’s:

  • record.doc” file size was 563200 bytes.
  • First, 200 Apache return code, access to “/adp/record.doc” file was recorded the 05/Feb/2013:07:12:24 -0300.
  • /adp/record.doc” file was removed from the server around the 08/Feb/2013 09:23:24 -0300.
  • Around 300 accesses on the “record.doc” files were done during this timeframe. 42 the 5 February, 7 the 6 February, 89 the 7 February and 161 the 8 February.
  • A PHP backdoor was present on the server since the 05/Nov/2012 and used multiple times.
  • A second PHP backdoor was uploaded on the server the 8 February, at 08/Feb/2013 02:25:25 -0300 (surely used to remove the record.doc file). Why not using the first PHP backdoor ? Surely cause you are not the guy who has deposit the “record.doc” file and you don’t know the existence of the first PHP backdoor.
  • The server was scanned during two days with Acunetix, starting the 02/Feb/2013 18:25:45 -0300

Additional analysis of the discovered “/jobs/” and JSbug backend directory provide the following interesting information’s:

  • The “/jobs/” directory was first seen the 22/Jan/2013 06:12:44 -0300
  • Installation of JSBug backend was done the 22/Jan/2013 06:13:16 -0300
  • Additional files were installed in the “/jobs/” directory like “img/jquery-1.8.3.min.js“, “img/logo.gif“, “check.php”, “download.htm“, “download.php“, “img/download.css“, “img/ff_step1.png“, “img/ie_step3.png“, “img/ff_step2.png” and “NProtect.exe“. “check.php“, “download.htm“, “NProtect.exe” and “download.php” are no more present on the server.

By analysing the file remaining on the server, and used in a previous attack, who has start the 22 January, we can see the following files who reveal that a spear phishing campaign was done against Boeing employees, in order to trick them to install the “NProtect.exe” malware.

logo file founded on the server
logo file founded on the server
Step 1 for NProtect.exe installation
Step 1 for NProtect.exe installation
Step 2 for NProtect.exe installation
Step 2 for NProtect.exe installation
Step 3 for NProtect.exe installation
Step 3 for NProtect.exe installation

Oracle Java Critical Patch Update February 2013 Review

Oracle has provide his Java Critical Patch Update (CPU) for February 2013 how has been released on Friday, February 1. Initial release date was planned for 19 February but Oracle has push this update earlier due to the active exploitation of one of the critical vulnerabilities in the wild. On the 50 security vulnerabilities, fixed in this CPU, 49 of them may be remotely exploitable. The highest CVSS Base Score for vulnerabilities in this CPU is 10.0. 34 vulnerabilities have a CVSS base score upper or equal to 7.0.

It is actually not clear which of these vulnerability is exploited in the wild, but it could be related to CVE-2013-1489, an issue publicly reported and regarding Java SE7 security features introduced in Java SE7 Update 10.

As you may know Oracle is using CVSS 2.0 (Common Vulnerability Scoring System) in order to score the reported vulnerabilities. But as you also may know security researchers disagree with the usage of CVSS by Oracle. Oracle play with CVSS score by creating a “Partial+” impact rating how don’t exist in CVSS 2.0, and by interpreting the “Complete” rating in a different way than defined in CVSS 2.0.

Affected products are:

  • JDK and JRE 7 Update 11 and earlier
  • JDK and JRE 6 Update 38 and earlier
  • JDK and JRE 5.0 Update 38 and earlier
  • SDK and JRE 1.4.2_40 and earlier
  • JavaFX 2.2.4 and earlier

CVE-2012-1541CVE-2012-3213CVE-2012-3342CVE-2012-4301CVE-2013-0425CVE-2013-0426CVE-2013-0428CVE-2013-0436CVE-2013-0437CVE-2013-0439CVE-2013-0441CVE-2013-0442CVE-2013-0445CVE-2013-0446CVE-2013-0447CVE-2013-0450CVE-2013-1472CVE-2013-1475CVE-2013-1476CVE-2013-1477CVE-2013-1478CVE-2013-1479CVE-2013-1480CVE-2013-1481CVE-2013-1482 and CVE-2013-1483 have a CVSS base score of 10.0.

CVE-2012-4305 and CVE-2013-1474 have a CVSS base score of 9.3.

CVE-2012-1543, CVE-2013-0419, CVE-2013-0423, CVE-2013-0429 and CVE-2013-0444 have a CVSS base score of 7.6.

CVE-2013-0351 has a CVSS base score of 7.5.

CVE-2013-0430 has a CVSS base score of 6.9.

CVE-2013-0432 has a CVSS base score of 6.4.

CVE-2013-0409, CVE-2013-0424, CVE-2013-0427, CVE-2013-0431, CVE-2013-0433, CVE-2013-0434, CVE-2013-0435, CVE-2013-0440, CVE-2013-0448, CVE-2013-0449 and CVE-2013-1473 have a CVSS base score of 5.0.

CVE-2013-0438 has a CVSS base score of 4.3.

CVE-2013-0443 has a CVSS base score of 4.0.

CVE-2013-1489 has a CVSS base score of 0.0.