A new Java 0-day vulnerability has been discovered, and is already being exploited in the wild. Currently, disabling the plugin is the only way to protect your computer.
The MBeanInstantiator in Oracle Java Runtime Environment (JRE) 1.7 in Java 7 Update 10 and earlier allows remote attackers to execute arbitrary code via vectors related to unspecified classes that allow access to the class loader, as exploited in the wild in January 2013, as demonstrated by Blackhole and Nuclear Pack, and a different vulnerability than CVE-2012-4681.
By convincing a user to visit a specially crafted HTML document, a remote attacker may be able to execute arbitrary code on a vulnerable system.
CVE Standard Vulnerability Entry: CVE-2013-0422
This actual vulnerability was later confirmed by security firm AlienVault Labs. With Kafeine’s help, the company reproduced the exploit on a new, fully-patched installation of Java, and used a malicious Java applet to remotely execute the Calculator application on Windows XP as shown in the below screen-shot:
Yahoo is investigating the claims of a hacker who is selling an exploit that apparently hijacks Yahoo mail accounts.
The exploit, being sold for $700 by an Egyptian hacker on an exclusive cybercrime forum, targets a cross-site scripting (XSS) weakness in yahoo.com that lets attackers steal cookies from Yahoo! Webmail users.
Such a flaw would let attackers send or read email from the victim’s account. In a typical XSS attack, an attacker sends a malicious link to an unsuspecting user; if the user clicks the link, the script is executed, and can access cookies, session tokens or other sensitive information retained by the browser and used with that site. These scripts can even rewrite the content of the HTML page.
Demonstrating an apparent flair for marketing, the hacker, under the alias “TheHell” also posted a video on YouTube, providing a demo for potential customers. He claims it works with all browsers and does not require a bypass of XSS filters in either Chrome or Internet Explorer. He also says the exploit will be sold only to trusted individuals who are not likely to turn it over to Yahoo, which would undoubtedly develop a patch that will foil the attack.
“TheHell” claims that his exploit attacks a “stored” XSS flaw. This type of attack injects a code that is permanently stored on targeted servers until it is found and deleted. The malicious code is then passed to the victim’s machine when that particular server is accessed for legitimate download.
A standard phishing attempt is used to access the user’s cookies, from which the attacker can access the person’s email, or take full control of the account.
As of Tuesday morning, Yahoo was in the process of trying to identify the infected URL. Once the identification is successful, the malicious portion of code will be deleted.
Multiple vulnerabilities have been found in Tor, the most severe of which may allow a remote attacker to execute arbitrary code.
Multiple vulnerabilities have been discovered in Tor:
- When configured as client or bridge, Tor uses the same TLS certificate chain for all outgoing connections (CVE-2011-2768).
- When configured as a bridge, Tor relays can distinguish incoming bridge connections from client connections (CVE-2011-2769).
- An error in or/buffers.c could result in a heap-based buffer overflow (CVE-2011-2778).
A remote attacker could possibly execute arbitrary code or cause a Denial of Service. Furthermore, a remote relay the user is directly connected to may be able to disclose anonymous information about that user or enumerate bridges in the user’s connection.
There is no known workaround at this time.
All Tor users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=net-misc/tor-0.2.2.35″
Vulnerability-Lab Team discovered a Memory & Pointer Corruption Vulnerability on Kaspersky Internet Security 2011/2012 & Kaspersky Anti-Virus 2011/2012.
The vulnerability is caused by an invalid pointer corruption when processing a corrupt .cfg file through the kaspersky exception filters, which could be exploited by attackers to crash the complete software process.
The bug is located over the basegui.ppl & basegui.dll when processing a .cfg file import.
[+] CFG IMPORT
– Kaspersky Anti-Virus 2012 & Kaspersky Internet Security 2012
– KIS 2012 v220.127.116.114
– KAV 2012 v12.x
– Kaspersky Anti-Virus 2011 & Kaspersky Internet Security 2011
– KIS 2011 v18.104.22.168 (a.b)
– KAV 22.214.171.1240
– KIS 2011 v126.96.36.1994
– Kaspersky Anti-Virus 2010 & Kaspersky Internet Security 2010
Vulnerability Research Laboratory – Benjamin K.M. (Rem0ve)
A vulnerability has been discovered in Microsoft Windows, which can be exploited by malicious people to potentially compromise a user’s system.
The vulnerability is caused due to an error in win32k.sys and can be exploited to corrupt memory via e.g. a specially crafted web page containing an IFRAME with an overly large “height” attribute viewed using the Apple Safari browser.
Successful exploitation may allow execution of arbitrary code with kernel-mode privileges.
The vulnerability is confirmed on a fully patched Windows 7 Professional 64-bit.
Other versions may also be affected.
No effective solution is currently available.
<iframe height=’18082563′></iframe> causes a BSoD on win 7 x64 via Safari. Lol!