Vulnerabilidad en TweetDeck para Chrome permite ejecución de código remoto

Una nueva vulnerabilidad XSS en TweetDeck para Google Chrome permite la ejecución de código en forma remota simplemente escribiéndolo en un tweet.

Subdominio de Oracle sufrió un defacement

Un hacker indio que se autodenomina Bl@Ck Dr@GoN ha hecho un defacement en uno de los subdominios de Oracle, la reconocida compañía proveedora de software. El sitio en cuestión corresponde a Oracle University Electronic Attendance, el cual, momento de publicar este post, seguía mostrando el mensaje que se ve en la siguiente captura: Los usuarios

Stored XSS y su impacto sobre el usuario

Anteriormente hemos informado sobre los ataques web XSS y qué tipos existen. Asimismo, también hemos informado sobre vulnerabilidades XSS en sitios web populares. En esta ocasión, analizaremos cuál es el impacto de un ataque stored cross site scripting (XSS) sobre un usuario y qué precauciones deberían tomarse para que el usuario tome medidas de protección.

México, Brasil y Perú con más sitios educativos y de gobierno infectados

Después de un análisis de una muestra de más de 4500 sitios web latinoamericanos infectados pudimos determinar cuáles son los países que tienen una mayor proporción de sitios de entidades oficiales y educativas con algún tipo de infección con códigos maliciosos. Si bien los blogs son uno de los servicios más vulnerados en Latinoamérica, los

Alerta: plugin de Cuevana roba información sensible y bancaria

Cuevana, el popular sitio argentino de distribución gratuita de series y películas, fue encontrado distribuyendo un plugin para Firefox que contenía algunas líneas de instrucciones maliciosas, es decir, código cuyo propósito es capturar contraseñas en sitios web como los datos que ingresa un usuario en un formulario de una página. Al respecto, algunos miembros de

Sales en un video en Facebook contiene ataque de phishing

Continuamente los usuarios de redes sociales nos encontramos con contenidos no generados por nosotros en nuestros perfiles de Facebook, cuentas de Twitter , etc. Como sabemos, estos contenidos pueden llegar a representar un peligro para los usuarios desprevenidos que por curiosidad o desconocimiento acceden a ellos. En esta oportunidad hablaremos mas en profundidad de uno

Obfuscated JavaScript – Oh What a Tangled Web

My colleague Daniel Novomeský alerted me to a problem he’s observed with the way some web-developers use JavaScript: a few of them have the habit of obfuscating JavaScript code on their web sites, presumably in order to compress it so that it takes less disk-space (“packing”) or using a “protector” in order to make it

Adobe, Make My Day Too….


Blackhat SEO uses online games to distribute malware

Here's another post from our colleagues in Spain (http://www.eset.es): mistakes in interpretation are down to me (David Harley). We have frequently talked about and shown examples of threats that take advantage of Black-Hat SEO (Search Engine Optimization). This technique (BHSEO) is used by malware authors to position the malicious links in the top results when a potential

Patchwork for the Home and the Enterprise

SC Magazine's Dan Raywood reports that "To be completely patched requires an average of between 51 and 86 actions per year", quoting findings by Secunia that " in order for the typical home user to stay fully patched, an average of 75 patches from 22 different vendors need to be installed, requiring the user to

Adobe, Javascript, and the CVE-2009-4324 Exploit

There has been quite a lot of traffic in the last few weeks about the doc.media.newPlayer vulnerability referenced in the CVE database as CVE-2009-4324. The following Adobe articles refer: http://www.adobe.com/support/security/advisories/apsa09-07.html http://blogs.adobe.com/psirt/2009/12/new_adobe_reader_and_acrobat_v.html http://blogs.adobe.com/psirt/2009/12/security_advisory_apsa09-07_up.html Today's article at the Internet Storm Center by Bojan Zdrnja (http://isc.sans.org/diary.html?storyid=7867) gives a lot of detail on a particularly inventive exploit of the

PDF – Pretty Darned Fatal

Adobe PDF files were supposed to be a safe alternative to Microsoft Word documents in a time when Microsoft offered no effective protection against macro viruses and had virtually no security model in Office at all. Times change. Microsoft Word documents rarely spread macro viruses and have not for a long time if you are

Vulnerability Musings and Reflexive Thinking

Some of us are currently enjoying some excellent presentations at a CARO workshop in Budapest on exploits and vulnerabilities. Hopefully, some of them will eventually be made public, so that we’ll be able to include pointers to specific resources. While there’s been a great deal of technical detail made available that has passed me by

Adobe: Lessons Not Learned

One of my all time favorite quotes is by “"Those who cannot remember the past are condemned to repeat it." George Santayana said this in The Life of Reason or The Phases of Human Progress: Reason in Common Sense 284 (2nd ed., Charles Scribner’s Sons, New York, New York 1924 (originally published 1905 Charles Scribner’s

Adobe: Wake Up & Smell the Javascript

Ever since Adobe’s recent updates to Acrobat and Reader, I’ve been irritated by the fact that every time I open a PDF, I’m prompted to  re-enable JavaScript, which I disabled while we were all waiting patiently for those patches to the last round of vulnerabilities. "This document contains JavaScripts. Do you want to enable JavaScripts

Adobe Reader & Acrobat: Updates on Updates

Well, I’ve still had no information about updates to address the recent Acrobat vulnerability/exploits to either of the addresses I subscribed to Adobe’s Security Notification Service. However, the RSS feed here does work. Which is how I know that Acrobat Reader 9.1 and 8.1.4 for Unix were released yesterday, right on time. As expected, these address the

Adobe Patches & Communication

Well, Adobe are still not speaking to me: I’ve had no information about updates to address the recent Acrobat vulnerability/exploits to either of the addresses I subscribed to its Security Notification Service. (See PPPS below.) However, something positive is happening out there in the old clay homestead: updates have arrived for a machine on which

Acrobat Amendment

A reminder about about the Acrobat reader vulnerability we blogged about several times recently (http://www.eset.com/threat-center/blog/?p=593, http://www.eset.com/threat-center/blog/?p=579, http://www.eset.com/threat-center/blog/?p=572). Remember I said "As we’ve said previously, disabling JavaScript, while it doesn’t address the underlying vulnerability, stops known exploits from working properly"? Predictably, there are now known exploits that don’t use the JavaScript heap spray trick. While I’m

Phish Phlags

Here’s a phish one of ESET’s partners drew our attention to: it’s aimed at users of Maybank (http://www.maybank2u.com), the largest financial services group in Malaysia. The scam is somewhat more elaborate than many we see, and it’s worth a little analysis to see what flags we can extract from it for spotting a phisher at work From: Maybank

More Acrobatics

For the geekier among us wanting or needing to know more about the Adobe vulnerability that Randy and I both blogged on yesterday, here are a few resources: More from Shadowserver at http://www.shadowserver.org/wiki/pmwiki.php?n=Calendar.20090221 As we’ve said previously, disabling JavaScript, while it doesn’t address the underlying vulnerability, stops known exploits from working properly. There are rules

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